28 files changed, 102 insertions, 369 deletions

diff --git a/configure.ac b/configure.ac
index 9ca2f19bf9..85e3d1d669 100644
--- a/configure.ac
+++ b/configure.ac
@@ -64,13 +64,6 @@ AC_PATH_PROG(CCACHE,ccache)
 AC_PATH_PROG(XGETTEXT,xgettext)
 AC_PATH_PROG(HEXDUMP,hexdump)
 
-# This m4 will only be used if a system copy cannot be found. This is helpful
-# on systems where autotools are installed but the pkg-config macros are not in
-# a default location. It is currently used for building on OSX where autotools
-# are preinstalled but pkg-config comes from macports or homebrew. It should
-# probably be removed when building on <= 10.6 is no longer supported.
-m4_include([pkg.m4])
-
 dnl pkg-config check.
 PKG_PROG_PKG_CONFIG
 
diff --git a/contrib/debian/manpages/bitcoind.1 b/contrib/debian/manpages/bitcoind.1
index a1b17d6077..c225b9f3e9 100644
--- a/contrib/debian/manpages/bitcoind.1
+++ b/contrib/debian/manpages/bitcoind.1
@@ -85,19 +85,19 @@ This help message
 Safely copies *wallet.dat* to 'destination', which can be a directory or a path with filename.
 .TP
 \fBgetaccount 'bitcoinaddress'\fR
-Returns the account associated with the given address.
+DEPRECATED. Returns the account associated with the given address.
 .TP
 \fBsetaccount 'bitcoinaddress' ['account']\fR
-Sets the ['account'] associated with the given address. ['account'] may be omitted to remove an address from ['account'].
+DEPRECATED. Sets the ['account'] associated with the given address. ['account'] may be omitted to remove an address from ['account'].
 .TP
 \fBgetaccountaddress 'account'\fR
-Returns a new bitcoin address for 'account'.
+DEPRECATED. Returns a new bitcoin address for 'account'.
 .TP
 \fBgetaddressesbyaccount 'account'\fR
-Returns the list of addresses associated with the given 'account'.
+DEPRECATED. Returns the list of addresses associated with the given 'account'.
 .TP
 \fBgetbalance 'account'\fR
-Returns the server's available balance, or the balance for 'account'.
+Returns the server's available balance, or the balance for 'account' (accounts are deprecated).
 .TP
 \fBgetblockcount\fR
 Returns the number of blocks in the longest block chain.
@@ -124,10 +124,10 @@ Returns a recent hashes per second performance measurement while generating.
 Returns an object containing server information.
 .TP
 \fBgetnewaddress 'account'\fR
-Returns a new bitcoin address for receiving payments. If 'account' is specified (recommended), it is added to the address book so payments received with the address will be credited to 'account'.
+Returns a new bitcoin address for receiving payments. If 'account' is specified (deprecated), it is added to the address book so payments received with the address will be credited to 'account'.
 .TP
 \fBgetreceivedbyaccount 'account' ['minconf=1']\fR
-Returns the total amount received by addresses associated with 'account' in transactions with at least ['minconf'] confirmations.
+DEPRECATED. Returns the total amount received by addresses associated with 'account' in transactions with at least ['minconf'] confirmations.
 .TP
 \fBgetreceivedbyaddress 'bitcoinaddress' ['minconf=1']\fR
 Returns the total amount received by 'bitcoinaddress' in transactions with at least ['minconf'] confirmations.
@@ -147,13 +147,13 @@ If 'data' is specified, tries to solve the block and returns true if it was succ
 List commands, or get help for a command.
 .TP
 \fBlistaccounts ['minconf=1']\fR
-List accounts and their current balances.
+DEPRECATED. List accounts and their current balances.
      *note: requires bitcoin 0.3.20 or later.
 .TP
 \fBlistreceivedbyaccount ['minconf=1'] ['includeempty=false']\fR
 ['minconf'] is the minimum number of confirmations before payments are included. ['includeempty'] whether to include addresses that haven't received any payments. Returns an array of objects containing:
 
-    "account"       : the account of the receiving address.
+    "account"       : DEPRECATED. the account of the receiving address.
     "amount"        : total amount received by the address.
     "confirmations" : number of confirmations of the most recent transaction included.
 .TP
@@ -161,7 +161,7 @@ List accounts and their current balances.
 ['minconf'] is the minimum number of confirmations before payments are included. ['includeempty'] whether to include addresses that haven't received any payments. Returns an array of objects containing:
 
     "address"       : receiving address.
-    "account"       : the account of the receiving address.
+    "account"       : DEPRECATED. the account of the receiving address.
     "amount"        : total amount received by the address.
     "confirmations" : number of confirmations of the most recent transaction included.
 .TP
@@ -180,10 +180,10 @@ Returns a list of the last ['count'] transactions for 'account' \- for all accou
     *note: requires bitcoin 0.3.20 or later.
 .TP
 \fBmove <'fromaccount'> <'toaccount'> <'amount'> ['minconf=1'] ['comment']\fR
-Moves funds between accounts.
+DEPRECATED. Moves funds between accounts.
 .TP
 \fBsendfrom* <'account'> <'bitcoinaddress'> <'amount'> ['minconf=1'] ['comment'] ['comment-to']\fR
-Sends amount from account's balance to 'bitcoinaddress'. This method will fail if there is less than amount bitcoins with ['minconf'] confirmations in the account's balance (unless account is the empty-string-named default account; it behaves like the *sendtoaddress* method). Returns transaction ID on success.
+DEPRECATED. Sends amount from account's balance to 'bitcoinaddress'. This method will fail if there is less than amount bitcoins with ['minconf'] confirmations in the account's balance (unless account is the empty-string-named default account; it behaves like the *sendtoaddress* method). Returns transaction ID on success.
 .TP     
 \fBsendtoaddress 'bitcoinaddress' 'amount' ['comment'] ['comment-to']\fR
 Sends amount from the server's available balance to 'bitcoinaddress'. amount is a real and is rounded to the nearest 0.01. Returns transaction id on success.
diff --git a/pkg.m4 b/pkg.m4
deleted file mode 100644
index c5b26b52e6..0000000000
--- a/pkg.m4
+++ /dev/null
@@ -1,214 +0,0 @@
-# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
-# serial 1 (pkg-config-0.24)
-# 
-# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# PKG_PROG_PKG_CONFIG([MIN-VERSION])
-# ----------------------------------
-AC_DEFUN([PKG_PROG_PKG_CONFIG],
-[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
-m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
-m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
-AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
-AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
-AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
-
-if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
-	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
-fi
-if test -n "$PKG_CONFIG"; then
-	_pkg_min_version=m4_default([$1], [0.9.0])
-	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
-	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
-		AC_MSG_RESULT([yes])
-	else
-		AC_MSG_RESULT([no])
-		PKG_CONFIG=""
-	fi
-fi[]dnl
-])# PKG_PROG_PKG_CONFIG
-
-# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-#
-# Check to see whether a particular set of modules exists.  Similar
-# to PKG_CHECK_MODULES(), but does not set variables or print errors.
-#
-# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
-# only at the first occurence in configure.ac, so if the first place
-# it's called might be skipped (such as if it is within an "if", you
-# have to call PKG_CHECK_EXISTS manually
-# --------------------------------------------------------------
-AC_DEFUN([PKG_CHECK_EXISTS],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-if test -n "$PKG_CONFIG" && \
-    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
-  m4_default([$2], [:])
-m4_ifvaln([$3], [else
-  $3])dnl
-fi])
-
-# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
-# ---------------------------------------------
-m4_define([_PKG_CONFIG],
-[if test -n "$$1"; then
-    pkg_cv_[]$1="$$1"
- elif test -n "$PKG_CONFIG"; then
-    PKG_CHECK_EXISTS([$3],
-                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
-		      test "x$?" != "x0" && pkg_failed=yes ],
-		     [pkg_failed=yes])
- else
-    pkg_failed=untried
-fi[]dnl
-])# _PKG_CONFIG
-
-# _PKG_SHORT_ERRORS_SUPPORTED
-# -----------------------------
-AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
-        _pkg_short_errors_supported=yes
-else
-        _pkg_short_errors_supported=no
-fi[]dnl
-])# _PKG_SHORT_ERRORS_SUPPORTED
-
-
-# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
-# [ACTION-IF-NOT-FOUND])
-#
-#
-# Note that if there is a possibility the first call to
-# PKG_CHECK_MODULES might not happen, you should be sure to include an
-# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
-#
-#
-# --------------------------------------------------------------
-AC_DEFUN([PKG_CHECK_MODULES],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
-AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
-
-pkg_failed=no
-AC_MSG_CHECKING([for $1])
-
-_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
-_PKG_CONFIG([$1][_LIBS], [libs], [$2])
-
-m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
-and $1[]_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.])
-
-if test $pkg_failed = yes; then
-   	AC_MSG_RESULT([no])
-        _PKG_SHORT_ERRORS_SUPPORTED
-        if test $_pkg_short_errors_supported = yes; then
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
-        else 
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
-        fi
-	# Put the nasty error message in config.log where it belongs
-	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
-
-	m4_default([$4], [AC_MSG_ERROR(
-[Package requirements ($2) were not met:
-
-$$1_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-_PKG_TEXT])[]dnl
-        ])
-elif test $pkg_failed = untried; then
-     	AC_MSG_RESULT([no])
-	m4_default([$4], [AC_MSG_FAILURE(
-[The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-_PKG_TEXT
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
-        ])
-else
-	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
-	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
-        AC_MSG_RESULT([yes])
-	$3
-fi[]dnl
-])# PKG_CHECK_MODULES
-
-
-# PKG_INSTALLDIR(DIRECTORY)
-# -------------------------
-# Substitutes the variable pkgconfigdir as the location where a module
-# should install pkg-config .pc files. By default the directory is
-# $libdir/pkgconfig, but the default can be changed by passing
-# DIRECTORY. The user can override through the --with-pkgconfigdir
-# parameter.
-AC_DEFUN([PKG_INSTALLDIR],
-[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
-m4_pushdef([pkg_description],
-    [pkg-config installation directory @<:@]pkg_default[@:>@])
-AC_ARG_WITH([pkgconfigdir],
-    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
-    [with_pkgconfigdir=]pkg_default)
-AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
-m4_popdef([pkg_default])
-m4_popdef([pkg_description])
-]) dnl PKG_INSTALLDIR
-
-
-# PKG_NOARCH_INSTALLDIR(DIRECTORY)
-# -------------------------
-# Substitutes the variable noarch_pkgconfigdir as the location where a
-# module should install arch-independent pkg-config .pc files. By
-# default the directory is $datadir/pkgconfig, but the default can be
-# changed by passing DIRECTORY. The user can override through the
-# --with-noarch-pkgconfigdir parameter.
-AC_DEFUN([PKG_NOARCH_INSTALLDIR],
-[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
-m4_pushdef([pkg_description],
-    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
-AC_ARG_WITH([noarch-pkgconfigdir],
-    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
-    [with_noarch_pkgconfigdir=]pkg_default)
-AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
-m4_popdef([pkg_default])
-m4_popdef([pkg_description])
-]) dnl PKG_NOARCH_INSTALLDIR
-
-
-# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
-# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# -------------------------------------------
-# Retrieves the value of the pkg-config variable for the given module.
-AC_DEFUN([PKG_CHECK_VAR],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
-
-_PKG_CONFIG([$1], [variable="][$3]["], [$2])
-AS_VAR_COPY([$1], [pkg_cv_][$1])
-
-AS_VAR_IF([$1], [""], [$5], [$4])dnl
-])# PKG_CHECK_VAR
diff --git a/src/db.cpp b/src/db.cpp
index fcc177f1cc..7b51707f60 100644
--- a/src/db.cpp
+++ b/src/db.cpp
@@ -217,10 +217,11 @@ void CDBEnv::CheckpointLSN(const std::string& strFile)
 }
 
 
-CDB::CDB(const std::string& strFilename, const char* pszMode) : pdb(NULL), activeTxn(NULL)
+CDB::CDB(const std::string& strFilename, const char* pszMode, bool fFlushOnCloseIn) : pdb(NULL), activeTxn(NULL)
 {
     int ret;
     fReadOnly = (!strchr(pszMode, '+') && !strchr(pszMode, 'w'));
+    fFlushOnClose = fFlushOnCloseIn;
     if (strFilename.empty())
         return;
 
@@ -297,7 +298,8 @@ void CDB::Close()
     activeTxn = NULL;
     pdb = NULL;
 
-    Flush();
+    if (fFlushOnClose)
+        Flush();
 
     {
         LOCK(bitdb.cs_db);
diff --git a/src/db.h b/src/db.h
index 393978633f..d208907c89 100644
--- a/src/db.h
+++ b/src/db.h
@@ -97,8 +97,9 @@ protected:
     std::string strFile;
     DbTxn* activeTxn;
     bool fReadOnly;
+    bool fFlushOnClose;
 
-    explicit CDB(const std::string& strFilename, const char* pszMode = "r+");
+    explicit CDB(const std::string& strFilename, const char* pszMode = "r+", bool fFlushOnCloseIn=true);
     ~CDB() { Close(); }
 
 public:
diff --git a/src/init.cpp b/src/init.cpp
index b58d1746e8..aaa5f06c75 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1211,6 +1211,8 @@ bool AppInit2(boost::thread_group& threadGroup)
             // Restore wallet transaction metadata after -zapwallettxes=1
             if (GetBoolArg("-zapwallettxes", false) && GetArg("-zapwallettxes", "1") != "2")
             {
+                CWalletDB walletdb(strWalletFile);
+
                 BOOST_FOREACH(const CWalletTx& wtxOld, vWtx)
                 {
                     uint256 hash = wtxOld.GetHash();
@@ -1226,7 +1228,7 @@ bool AppInit2(boost::thread_group& threadGroup)
                         copyTo->fFromMe = copyFrom->fFromMe;
                         copyTo->strFromAccount = copyFrom->strFromAccount;
                         copyTo->nOrderPos = copyFrom->nOrderPos;
-                        copyTo->WriteToDisk();
+                        copyTo->WriteToDisk(&walletdb);
                     }
                 }
             }
@@ -1252,6 +1254,11 @@ bool AppInit2(boost::thread_group& threadGroup)
             vImportFiles.push_back(strFile);
     }
     threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles));
+    if (chainActive.Tip() == NULL) {
+        LogPrintf("Waiting for genesis block to be imported...\n");
+        while (!fRequestShutdown && chainActive.Tip() == NULL)
+            MilliSleep(10);
+    }
 
     // ********************************************************* Step 10: start node
 
diff --git a/src/miner.cpp b/src/miner.cpp
index cc97d16f0f..5cc4a92791 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -362,8 +362,6 @@ void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int&
 //
 // Internal miner
 //
-double dHashesPerSec = 0.0;
-int64_t nHPSTimerStart = 0;
 
 //
 // ScanHash scans nonces looking for a hash with at least some zero bits.
@@ -393,10 +391,8 @@ bool static ScanHash(const CBlockHeader *pblock, uint32_t& nNonce, uint256 *phas
             return true;
 
         // If nothing found after trying for a while, return -1
-        if ((nNonce & 0xffff) == 0)
-            return false;
         if ((nNonce & 0xfff) == 0)
-            boost::this_thread::interruption_point();
+            return false;
     }
 }
 
@@ -483,14 +479,9 @@ void static BitcoinMiner(CWallet *pwallet)
             arith_uint256 hashTarget = arith_uint256().SetCompact(pblock->nBits);
             uint256 hash;
             uint32_t nNonce = 0;
-            uint32_t nOldNonce = 0;
             while (true) {
-                bool fFound = ScanHash(pblock, nNonce, &hash);
-                uint32_t nHashesDone = nNonce - nOldNonce;
-                nOldNonce = nNonce;
-
                 // Check if something found
-                if (fFound)
+                if (ScanHash(pblock, nNonce, &hash))
                 {
                     if (UintToArith256(hash) <= hashTarget)
                     {
@@ -512,35 +503,6 @@ void static BitcoinMiner(CWallet *pwallet)
                     }
                 }
 
-                // Meter hashes/sec
-                static int64_t nHashCounter;
-                if (nHPSTimerStart == 0)
-                {
-                    nHPSTimerStart = GetTimeMillis();
-                    nHashCounter = 0;
-                }
-                else
-                    nHashCounter += nHashesDone;
-                if (GetTimeMillis() - nHPSTimerStart > 4000)
-                {
-                    static CCriticalSection cs;
-                    {
-                        LOCK(cs);
-                        if (GetTimeMillis() - nHPSTimerStart > 4000)
-                        {
-                            dHashesPerSec = 1000.0 * nHashCounter / (GetTimeMillis() - nHPSTimerStart);
-                            nHPSTimerStart = GetTimeMillis();
-                            nHashCounter = 0;
-                            static int64_t nLogTime;
-                            if (GetTime() - nLogTime > 30 * 60)
-                            {
-                                nLogTime = GetTime();
-                                LogPrintf("hashmeter %6.0f khash/s\n", dHashesPerSec/1000.0);
-                            }
-                        }
-                    }
-                }
-
                 // Check for stop or if block needs to be rebuilt
                 boost::this_thread::interruption_point();
                 // Regtest mode doesn't require peers
diff --git a/src/miner.h b/src/miner.h
index 593ddcd371..5d5c9c86c7 100644
--- a/src/miner.h
+++ b/src/miner.h
@@ -31,7 +31,4 @@ CBlockTemplate* CreateNewBlockWithKey(CReserveKey& reservekey);
 void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce);
 void UpdateTime(CBlockHeader* block, const CBlockIndex* pindexPrev);
 
-extern double dHashesPerSec;
-extern int64_t nHPSTimerStart;
-
 #endif // BITCOIN_MINER_H
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index 3d41dc89f1..09f784387e 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -164,6 +164,9 @@ BitcoinGUI::BitcoinGUI(const NetworkStyle *networkStyle, QWidget *parent) :
 
     // Create status bar
     statusBar();
+    
+    // Disable size grip because it looks ugly and nobody needs it
+    statusBar()->setSizeGripEnabled(false);
 
     // Status bar notification icons
     QFrame *frameBlocks = new QFrame();
diff --git a/src/qt/coincontroltreewidget.cpp b/src/qt/coincontroltreewidget.cpp
index 6cbcf7128d..5dcbf0c3f1 100644
--- a/src/qt/coincontroltreewidget.cpp
+++ b/src/qt/coincontroltreewidget.cpp
@@ -17,7 +17,8 @@ void CoinControlTreeWidget::keyPressEvent(QKeyEvent *event)
     {
         event->ignore();
         int COLUMN_CHECKBOX = 0;
-        this->currentItem()->setCheckState(COLUMN_CHECKBOX, ((this->currentItem()->checkState(COLUMN_CHECKBOX) == Qt::Checked) ? Qt::Unchecked : Qt::Checked));
+        if(this->currentItem())
+            this->currentItem()->setCheckState(COLUMN_CHECKBOX, ((this->currentItem()->checkState(COLUMN_CHECKBOX) == Qt::Checked) ? Qt::Unchecked : Qt::Checked));
     }
     else if (event->key() == Qt::Key_Escape) // press esc -> close dialog
     {
@@ -29,4 +30,4 @@ void CoinControlTreeWidget::keyPressEvent(QKeyEvent *event)
     {
         this->QTreeWidget::keyPressEvent(event);
     }
-}
\ No newline at end of file
+}
diff --git a/src/qt/res/icons/add.png b/src/qt/res/icons/add.png
index 7e46672f2d..1442b4e85e 100644
--- a/src/qt/res/icons/add.png
+++ b/src/qt/res/icons/add.png
diff --git a/src/qt/res/icons/filesave.png b/src/qt/res/icons/filesave.png
index f4e6f58d05..779cca1d52 100644
--- a/src/qt/res/icons/filesave.png
+++ b/src/qt/res/icons/filesave.png
diff --git a/src/qt/transactionview.h b/src/qt/transactionview.h
index 2858982f09..092d919042 100644
--- a/src/qt/transactionview.h
+++ b/src/qt/transactionview.h
@@ -49,10 +49,10 @@ public:
     };
 
     enum ColumnWidths {
-        STATUS_COLUMN_WIDTH = 23,
+        STATUS_COLUMN_WIDTH = 30,
         WATCHONLY_COLUMN_WIDTH = 23,
         DATE_COLUMN_WIDTH = 120,
-        TYPE_COLUMN_WIDTH = 120,
+        TYPE_COLUMN_WIDTH = 113,
         AMOUNT_MINIMUM_COLUMN_WIDTH = 120,
         MINIMUM_COLUMN_WIDTH = 23
     };
diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index 603e2935dd..5df5de66d9 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -201,24 +201,6 @@ Value setgenerate(const Array& params, bool fHelp)
     return Value::null;
 }
 
-Value gethashespersec(const Array& params, bool fHelp)
-{
-    if (fHelp || params.size() != 0)
-        throw runtime_error(
-            "gethashespersec\n"
-            "\nReturns a recent hashes per second performance measurement while generating.\n"
-            "See the getgenerate and setgenerate calls to turn generation on and off.\n"
-            "\nResult:\n"
-            "n            (numeric) The recent hashes per second when generation is on (will return 0 if generation is off)\n"
-            "\nExamples:\n"
-            + HelpExampleCli("gethashespersec", "")
-            + HelpExampleRpc("gethashespersec", "")
-        );
-
-    if (GetTimeMillis() - nHPSTimerStart > 8000)
-        return (int64_t)0;
-    return (int64_t)dHashesPerSec;
-}
 #endif
 
 
@@ -237,7 +219,6 @@ Value getmininginfo(const Array& params, bool fHelp)
             "  \"errors\": \"...\"          (string) Current errors\n"
             "  \"generate\": true|false     (boolean) If the generation is on or off (see getgenerate or setgenerate calls)\n"
             "  \"genproclimit\": n          (numeric) The processor limit for generation. -1 if no generation. (see getgenerate or setgenerate calls)\n"
-            "  \"hashespersec\": n          (numeric) The hashes per second of the generation, or 0 if no generation.\n"
             "  \"pooledtx\": n              (numeric) The size of the mem pool\n"
             "  \"testnet\": true|false      (boolean) If using testnet or not\n"
             "  \"chain\": \"xxxx\",         (string) current network name as defined in BIP70 (main, test, regtest)\n"
@@ -260,7 +241,6 @@ Value getmininginfo(const Array& params, bool fHelp)
     obj.push_back(Pair("chain",            Params().NetworkIDString()));
 #ifdef ENABLE_WALLET
     obj.push_back(Pair("generate",         getgenerate(params, false)));
-    obj.push_back(Pair("hashespersec",     gethashespersec(params, false)));
 #endif
     return obj;
 }
diff --git a/src/rpcmisc.cpp b/src/rpcmisc.cpp
index 184aacf5a8..3d647a0d2d 100644
--- a/src/rpcmisc.cpp
+++ b/src/rpcmisc.cpp
@@ -165,7 +165,7 @@ Value validateaddress(const Array& params, bool fHelp)
             "  \"isscript\" : true|false,        (boolean) If the key is a script\n"
             "  \"pubkey\" : \"publickeyhex\",    (string) The hex value of the raw public key\n"
             "  \"iscompressed\" : true|false,    (boolean) If the address is compressed\n"
-            "  \"account\" : \"account\"         (string) The account associated with the address, \"\" is the default account\n"
+            "  \"account\" : \"account\"         (string) DEPRECATED. The account associated with the address, \"\" is the default account\n"
             "}\n"
             "\nExamples:\n"
             + HelpExampleCli("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
diff --git a/src/rpcrawtransaction.cpp b/src/rpcrawtransaction.cpp
index 9bd8233992..2b108bf588 100644
--- a/src/rpcrawtransaction.cpp
+++ b/src/rpcrawtransaction.cpp
@@ -216,7 +216,7 @@ Value listunspent(const Array& params, bool fHelp)
             "    \"txid\" : \"txid\",        (string) the transaction id \n"
             "    \"vout\" : n,               (numeric) the vout value\n"
             "    \"address\" : \"address\",  (string) the bitcoin address\n"
-            "    \"account\" : \"account\",  (string) The associated account, or \"\" for the default account\n"
+            "    \"account\" : \"account\",  (string) DEPRECATED. The associated account, or \"\" for the default account\n"
             "    \"scriptPubKey\" : \"key\", (string) the script key\n"
             "    \"amount\" : x.xxx,         (numeric) the transaction amount in btc\n"
             "    \"confirmations\" : n       (numeric) The number of confirmations\n"
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index cb87142902..e4f23d56d2 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -281,7 +281,6 @@ static const CRPCCommand vRPCCommands[] =
 #ifdef ENABLE_WALLET
     /* Coin generation */
     { "generating",         "getgenerate",            &getgenerate,            true,      false,      false },
-    { "generating",         "gethashespersec",        &gethashespersec,        true,      false,      false },
     { "generating",         "setgenerate",            &setgenerate,            true,      true,       false },
 #endif
 
diff --git a/src/rpcserver.h b/src/rpcserver.h
index fb561ab939..1b94b758f2 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -154,7 +154,6 @@ extern json_spirit::Value importwallet(const json_spirit::Array& params, bool fH
 extern json_spirit::Value getgenerate(const json_spirit::Array& params, bool fHelp); // in rpcmining.cpp
 extern json_spirit::Value setgenerate(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getnetworkhashps(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value gethashespersec(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getmininginfo(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value prioritisetransaction(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getblocktemplate(const json_spirit::Array& params, bool fHelp);
diff --git a/src/rpcwallet.cpp b/src/rpcwallet.cpp
index 7a4d685717..6ad3ee54d5 100644
--- a/src/rpcwallet.cpp
+++ b/src/rpcwallet.cpp
@@ -79,17 +79,15 @@ Value getnewaddress(const Array& params, bool fHelp)
         throw runtime_error(
             "getnewaddress ( \"account\" )\n"
             "\nReturns a new Bitcoin address for receiving payments.\n"
-            "If 'account' is specified (recommended), it is added to the address book \n"
+            "If 'account' is specified (DEPRECATED), it is added to the address book \n"
             "so payments received with the address will be credited to 'account'.\n"
             "\nArguments:\n"
-            "1. \"account\"        (string, optional) The account name for the address to be linked to. if not provided, the default account \"\" is used. It can also be set to the empty string \"\" to represent the default account. The account does not need to exist, it will be created if there is no account by the given name.\n"
+            "1. \"account\"        (string, optional) DEPRECATED. The account name for the address to be linked to. if not provided, the default account \"\" is used. It can also be set to the empty string \"\" to represent the default account. The account does not need to exist, it will be created if there is no account by the given name.\n"
             "\nResult:\n"
             "\"bitcoinaddress\"    (string) The new bitcoin address\n"
             "\nExamples:\n"
             + HelpExampleCli("getnewaddress", "")
-            + HelpExampleCli("getnewaddress", "\"\"")
-            + HelpExampleCli("getnewaddress", "\"myaccount\"")
-            + HelpExampleRpc("getnewaddress", "\"myaccount\"")
+            + HelpExampleRpc("getnewaddress", "")
         );
 
     // Parse the account first so we don't generate a key if there's an error
@@ -154,7 +152,7 @@ Value getaccountaddress(const Array& params, bool fHelp)
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaccountaddress \"account\"\n"
-            "\nReturns the current Bitcoin address for receiving payments to this account.\n"
+            "\nDEPRECATED. Returns the current Bitcoin address for receiving payments to this account.\n"
             "\nArguments:\n"
             "1. \"account\"       (string, required) The account name for the address. It can also be set to the empty string \"\" to represent the default account. The account does not need to exist, it will be created and a new address created  if there is no account by the given name.\n"
             "\nResult:\n"
@@ -212,7 +210,7 @@ Value setaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "setaccount \"bitcoinaddress\" \"account\"\n"
-            "\nSets the account associated with the given address.\n"
+            "\nDEPRECATED. Sets the account associated with the given address.\n"
             "\nArguments:\n"
             "1. \"bitcoinaddress\"  (string, required) The bitcoin address to be associated with an account.\n"
             "2. \"account\"         (string, required) The account to assign the address to.\n"
@@ -254,7 +252,7 @@ Value getaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaccount \"bitcoinaddress\"\n"
-            "\nReturns the account associated with the given address.\n"
+            "\nDEPRECATED. Returns the account associated with the given address.\n"
             "\nArguments:\n"
             "1. \"bitcoinaddress\"  (string, required) The bitcoin address for account lookup.\n"
             "\nResult:\n"
@@ -281,7 +279,7 @@ Value getaddressesbyaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaddressesbyaccount \"account\"\n"
-            "\nReturns the list of addresses for the given account.\n"
+            "\nDEPRECATED. Returns the list of addresses for the given account.\n"
             "\nArguments:\n"
             "1. \"account\"  (string, required) The account name.\n"
             "\nResult:\n"
@@ -400,7 +398,7 @@ Value listaddressgroupings(const Array& params, bool fHelp)
             "    [\n"
             "      \"bitcoinaddress\",     (string) The bitcoin address\n"
             "      amount,                 (numeric) The amount in btc\n"
-            "      \"account\"             (string, optional) The account\n"
+            "      \"account\"             (string, optional) The account (DEPRECATED)\n"
             "    ]\n"
             "    ,...\n"
             "  ]\n"
@@ -542,7 +540,7 @@ Value getreceivedbyaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "getreceivedbyaccount \"account\" ( minconf )\n"
-            "\nReturns the total amount received by addresses with <account> in transactions with at least [minconf] confirmations.\n"
+            "\nDEPRECATED. Returns the total amount received by addresses with <account> in transactions with at least [minconf] confirmations.\n"
             "\nArguments:\n"
             "1. \"account\"      (string, required) The selected account, may be the default account using \"\".\n"
             "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
@@ -627,26 +625,22 @@ Value getbalance(const Array& params, bool fHelp)
         throw runtime_error(
             "getbalance ( \"account\" minconf includeWatchonly )\n"
             "\nIf account is not specified, returns the server's total available balance.\n"
-            "If account is specified, returns the balance in the account.\n"
+            "If account is specified (DEPRECATED), returns the balance in the account.\n"
             "Note that the account \"\" is not the same as leaving the parameter out.\n"
             "The server total may be different to the balance in the default \"\" account.\n"
             "\nArguments:\n"
-            "1. \"account\"      (string, optional) The selected account, or \"*\" for entire wallet. It may be the default account using \"\".\n"
+            "1. \"account\"      (string, optional) DEPRECATED. The selected account, or \"*\" for entire wallet. It may be the default account using \"\".\n"
             "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
             "3. includeWatchonly (bool, optional, default=false) Also include balance in watchonly addresses (see 'importaddress')\n"
             "\nResult:\n"
             "amount              (numeric) The total amount in btc received for this account.\n"
             "\nExamples:\n"
-            "\nThe total amount in the server across all accounts\n"
+            "\nThe total amount in the wallet\n"
             + HelpExampleCli("getbalance", "") +
-            "\nThe total amount in the server across all accounts, with at least 5 confirmations\n"
+            "\nThe total amount in the wallet at least 5 blocks confirmed\n"
             + HelpExampleCli("getbalance", "\"*\" 6") +
-            "\nThe total amount in the default account with at least 1 confirmation\n"
-            + HelpExampleCli("getbalance", "\"\"") +
-            "\nThe total amount in the account named tabby with at least 6 confirmations\n"
-            + HelpExampleCli("getbalance", "\"tabby\" 6") +
             "\nAs a json rpc call\n"
-            + HelpExampleRpc("getbalance", "\"tabby\", 6")
+            + HelpExampleRpc("getbalance", "\"*\", 6")
         );
 
     if (params.size() == 0)
@@ -710,7 +704,7 @@ Value movecmd(const Array& params, bool fHelp)
     if (fHelp || params.size() < 3 || params.size() > 5)
         throw runtime_error(
             "move \"fromaccount\" \"toaccount\" amount ( minconf \"comment\" )\n"
-            "\nMove a specified amount from one account in your wallet to another.\n"
+            "\nDEPRECATED. Move a specified amount from one account in your wallet to another.\n"
             "\nArguments:\n"
             "1. \"fromaccount\"   (string, required) The name of the account to move funds from. May be the default account using \"\".\n"
             "2. \"toaccount\"     (string, required) The name of the account to move funds to. May be the default account using \"\".\n"
@@ -775,7 +769,7 @@ Value sendfrom(const Array& params, bool fHelp)
     if (fHelp || params.size() < 3 || params.size() > 6)
         throw runtime_error(
             "sendfrom \"fromaccount\" \"tobitcoinaddress\" amount ( minconf \"comment\" \"comment-to\" )\n"
-            "\nSent an amount from an account to a bitcoin address.\n"
+            "\nDEPRECATED (use sendtoaddress). Sent an amount from an account to a bitcoin address.\n"
             "The amount is a real and is rounded to the nearest 0.00000001."
             + HelpRequiringPassphrase() + "\n"
             "\nArguments:\n"
@@ -836,7 +830,7 @@ Value sendmany(const Array& params, bool fHelp)
             "\nSend multiple times. Amounts are double-precision floating point numbers."
             + HelpRequiringPassphrase() + "\n"
             "\nArguments:\n"
-            "1. \"fromaccount\"         (string, required) The account to send the funds from, can be \"\" for the default account\n"
+            "1. \"fromaccount\"         (string, required) DEPRECATED. The account to send the funds from. Should be \"\" for the default account\n"
             "2. \"amounts\"             (string, required) A json object with addresses and amounts\n"
             "    {\n"
             "      \"address\":amount   (numeric) The bitcoin address is the key, the numeric amount in btc is the value\n"
@@ -849,11 +843,11 @@ Value sendmany(const Array& params, bool fHelp)
             "                                    the number of addresses.\n"
             "\nExamples:\n"
             "\nSend two amounts to two different addresses:\n"
-            + HelpExampleCli("sendmany", "\"tabby\" \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\"") +
+            + HelpExampleCli("sendmany", "\"\" \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\"") +
             "\nSend two amounts to two different addresses setting the confirmation and comment:\n"
-            + HelpExampleCli("sendmany", "\"tabby\" \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\" 6 \"testing\"") +
+            + HelpExampleCli("sendmany", "\"\" \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\" 6 \"testing\"") +
             "\nAs a json rpc call\n"
-            + HelpExampleRpc("sendmany", "\"tabby\", \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\", 6, \"testing\"")
+            + HelpExampleRpc("sendmany", "\"\", \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\", 6, \"testing\"")
         );
 
     string strAccount = AccountFromValue(params[0]);
@@ -918,7 +912,7 @@ Value addmultisigaddress(const Array& params, bool fHelp)
         string msg = "addmultisigaddress nrequired [\"key\",...] ( \"account\" )\n"
             "\nAdd a nrequired-to-sign multisignature address to the wallet.\n"
             "Each key is a Bitcoin address or hex-encoded public key.\n"
-            "If 'account' is specified, assign address to that account.\n"
+            "If 'account' is specified (DEPRECATED), assign address to that account.\n"
 
             "\nArguments:\n"
             "1. nrequired        (numeric, required) The number of required signatures out of the n keys or addresses.\n"
@@ -927,7 +921,7 @@ Value addmultisigaddress(const Array& params, bool fHelp)
             "       \"address\"  (string) bitcoin address or hex-encoded public key\n"
             "       ...,\n"
             "     ]\n"
-            "3. \"account\"      (string, optional) An account to assign the addresses to.\n"
+            "3. \"account\"      (string, optional) DEPRECATED. An account to assign the addresses to.\n"
 
             "\nResult:\n"
             "\"bitcoinaddress\"  (string) A bitcoin address associated with the keys.\n"
@@ -1103,7 +1097,7 @@ Value listreceivedbyaddress(const Array& params, bool fHelp)
             "  {\n"
             "    \"involvesWatchonly\" : true,        (bool) Only returned if imported addresses were involved in transaction\n"
             "    \"address\" : \"receivingaddress\",  (string) The receiving address\n"
-            "    \"account\" : \"accountname\",       (string) The account of the receiving address. The default account is \"\".\n"
+            "    \"account\" : \"accountname\",       (string) DEPRECATED. The account of the receiving address. The default account is \"\".\n"
             "    \"amount\" : x.xxx,                  (numeric) The total amount in btc received by the address\n"
             "    \"confirmations\" : n                (numeric) The number of confirmations of the most recent transaction included\n"
             "  }\n"
@@ -1124,7 +1118,7 @@ Value listreceivedbyaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() > 3)
         throw runtime_error(
             "listreceivedbyaccount ( minconf includeempty includeWatchonly)\n"
-            "\nList balances by account.\n"
+            "\nDEPRECATED. List balances by account.\n"
             "\nArguments:\n"
             "1. minconf      (numeric, optional, default=1) The minimum number of confirmations before payments are included.\n"
             "2. includeempty (boolean, optional, default=false) Whether to include accounts that haven't received any payments.\n"
@@ -1251,15 +1245,14 @@ Value listtransactions(const Array& params, bool fHelp)
             "listtransactions ( \"account\" count from includeWatchonly)\n"
             "\nReturns up to 'count' most recent transactions skipping the first 'from' transactions for account 'account'.\n"
             "\nArguments:\n"
-            "1. \"account\"    (string, optional) The account name. If not included, it will list all transactions for all accounts.\n"
-            "                                     If \"\" is set, it will list transactions for the default account.\n"
+            "1. \"account\"    (string, optional) DEPRECATED. The account name. Should be \"*\".\n"
             "2. count          (numeric, optional, default=10) The number of transactions to return\n"
             "3. from           (numeric, optional, default=0) The number of transactions to skip\n"
             "4. includeWatchonly (bool, optional, default=false) Include transactions to watchonly addresses (see 'importaddress')\n"
             "\nResult:\n"
             "[\n"
             "  {\n"
-            "    \"account\":\"accountname\",       (string) The account name associated with the transaction. \n"
+            "    \"account\":\"accountname\",       (string) DEPRECATED. The account name associated with the transaction. \n"
             "                                                It will be \"\" for the default account.\n"
             "    \"address\":\"bitcoinaddress\",    (string) The bitcoin address of the transaction. Not present for \n"
             "                                                move transactions (category = move).\n"
@@ -1293,12 +1286,10 @@ Value listtransactions(const Array& params, bool fHelp)
             "\nExamples:\n"
             "\nList the most recent 10 transactions in the systems\n"
             + HelpExampleCli("listtransactions", "") +
-            "\nList the most recent 10 transactions for the tabby account\n"
-            + HelpExampleCli("listtransactions", "\"tabby\"") +
-            "\nList transactions 100 to 120 from the tabby account\n"
-            + HelpExampleCli("listtransactions", "\"tabby\" 20 100") +
+            "\nList transactions 100 to 120\n"
+            + HelpExampleCli("listtransactions", "\"*\" 20 100") +
             "\nAs a json rpc call\n"
-            + HelpExampleRpc("listtransactions", "\"tabby\", 20, 100")
+            + HelpExampleRpc("listtransactions", "\"*\", 20, 100")
         );
 
     string strAccount = "*";
@@ -1361,7 +1352,7 @@ Value listaccounts(const Array& params, bool fHelp)
     if (fHelp || params.size() > 2)
         throw runtime_error(
             "listaccounts ( minconf includeWatchonly)\n"
-            "\nReturns Object that has account names as keys, account balances as values.\n"
+            "\nDEPRECATED. Returns Object that has account names as keys, account balances as values.\n"
             "\nArguments:\n"
             "1. minconf          (numeric, optional, default=1) Only include transactions with at least this many confirmations\n"
             "2. includeWatchonly (bool, optional, default=false) Include balances in watchonly addresses (see 'importaddress')\n"
@@ -1444,7 +1435,7 @@ Value listsinceblock(const Array& params, bool fHelp)
             "\nResult:\n"
             "{\n"
             "  \"transactions\": [\n"
-            "    \"account\":\"accountname\",       (string) The account name associated with the transaction. Will be \"\" for the default account.\n"
+            "    \"account\":\"accountname\",       (string) DEPRECATED. The account name associated with the transaction. Will be \"\" for the default account.\n"
             "    \"address\":\"bitcoinaddress\",    (string) The bitcoin address of the transaction. Not present for move transactions (category = move).\n"
             "    \"category\":\"send|receive\",     (string) The transaction category. 'send' has negative amounts, 'receive' has positive amounts.\n"
             "    \"amount\": x.xxx,          (numeric) The amount in btc. This is negative for the 'send' category, and for the 'move' category for moves \n"
@@ -1538,7 +1529,7 @@ Value gettransaction(const Array& params, bool fHelp)
             "  \"timereceived\" : ttt,    (numeric) The time received in seconds since epoch (1 Jan 1970 GMT)\n"
             "  \"details\" : [\n"
             "    {\n"
-            "      \"account\" : \"accountname\",  (string) The account name involved in the transaction, can be \"\" for the default account.\n"
+            "      \"account\" : \"accountname\",  (string) DEPRECATED. The account name involved in the transaction, can be \"\" for the default account.\n"
             "      \"address\" : \"bitcoinaddress\",   (string) The bitcoin address involved in the transaction\n"
             "      \"category\" : \"send|receive\",    (string) The category, either 'send' or 'receive'\n"
             "      \"amount\" : x.xxx                  (numeric) The amount in btc\n"
diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index d0f75ab672..8a06f3d118 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -189,6 +189,11 @@ bool static IsDefinedHashtypeSignature(const valtype &vchSig) {
 }
 
 bool static CheckSignatureEncoding(const valtype &vchSig, unsigned int flags, ScriptError* serror) {
+    // Empty signature. Not strictly DER encoded, but allowed to provide a
+    // compact way to provide an invalid signature for use with CHECK(MULTI)SIG
+    if (vchSig.size() == 0) {
+        return true;
+    }
     if ((flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S | SCRIPT_VERIFY_STRICTENC)) != 0 && !IsDERSignature(vchSig)) {
         return set_error(serror, SCRIPT_ERR_SIG_DER);
     } else if ((flags & SCRIPT_VERIFY_LOW_S) != 0 && !IsLowDERSignature(vchSig, serror)) {
diff --git a/src/test/accounting_tests.cpp b/src/test/accounting_tests.cpp
index bed63991e6..da07b8c7a6 100644
--- a/src/test/accounting_tests.cpp
+++ b/src/test/accounting_tests.cpp
@@ -46,7 +46,7 @@ BOOST_AUTO_TEST_CASE(acc_orderupgrade)
     walletdb.WriteAccountingEntry(ae);
 
     wtx.mapValue["comment"] = "z";
-    pwalletMain->AddToWallet(wtx);
+    pwalletMain->AddToWallet(wtx, false, &walletdb);
     vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
     vpwtx[0]->nTimeReceived = (unsigned int)1333333335;
     vpwtx[0]->nOrderPos = -1;
@@ -88,7 +88,7 @@ BOOST_AUTO_TEST_CASE(acc_orderupgrade)
         --tx.nLockTime;  // Just to change the hash :)
         *static_cast<CTransaction*>(&wtx) = CTransaction(tx);
     }
-    pwalletMain->AddToWallet(wtx);
+    pwalletMain->AddToWallet(wtx, false, &walletdb);
     vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
     vpwtx[1]->nTimeReceived = (unsigned int)1333333336;
 
@@ -98,7 +98,7 @@ BOOST_AUTO_TEST_CASE(acc_orderupgrade)
         --tx.nLockTime;  // Just to change the hash :)
         *static_cast<CTransaction*>(&wtx) = CTransaction(tx);
     }
-    pwalletMain->AddToWallet(wtx);
+    pwalletMain->AddToWallet(wtx, false, &walletdb);
     vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
     vpwtx[2]->nTimeReceived = (unsigned int)1333333329;
     vpwtx[2]->nOrderPos = -1;
diff --git a/src/test/data/script_invalid.json b/src/test/data/script_invalid.json
index 42b79e7470..9a8fe1ee88 100644
--- a/src/test/data/script_invalid.json
+++ b/src/test/data/script_invalid.json
@@ -504,7 +504,7 @@
     "2-of-2 CHECKMULTISIG NOT with the first pubkey invalid, and both signatures validly encoded."
 ],
 [
-    "0 0x47 0x3044022044dc17b0887c161bb67ba9635bf758735bdde503e4b0a0987f587f14a4e1143d022009a215772d49a85dae40d8ca03955af26ad3978a0ff965faa12915e9586249a501 0",
+    "0 0x47 0x3044022044dc17b0887c161bb67ba9635bf758735bdde503e4b0a0987f587f14a4e1143d022009a215772d49a85dae40d8ca03955af26ad3978a0ff965faa12915e9586249a501 1",
     "2 0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 2 CHECKMULTISIG NOT",
     "STRICTENC",
     "2-of-2 CHECKMULTISIG NOT with both pubkeys valid, but first signature invalid."
diff --git a/src/test/data/script_valid.json b/src/test/data/script_valid.json
index 5253d5e39e..a187401cd4 100644
--- a/src/test/data/script_valid.json
+++ b/src/test/data/script_valid.json
@@ -662,6 +662,11 @@
 ["0 0 0x02 0x0000", "CHECKMULTISIGVERIFY 1", ""],
 ["0 0x02 0x0000 0", "CHECKMULTISIGVERIFY 1", ""],
 
+["While not really correctly DER encoded, the empty signature is allowed by"],
+["STRICTENC to provide a compact way to provide a delibrately invalid signature."],
+["0", "0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 CHECKSIG NOT", "STRICTENC"],
+["0 0", "1 0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 1 CHECKMULTISIG NOT", "STRICTENC"],
+
 ["CHECKMULTISIG evaluation order tests. CHECKMULTISIG evaluates signatures and"],
 ["pubkeys in a specific order, and will exit early if the number of signatures"],
 ["left to check is greater than the number of keys left. As STRICTENC fails the"],
diff --git a/src/test/multisig_tests.cpp b/src/test/multisig_tests.cpp
index 69d8522188..9501169943 100644
--- a/src/test/multisig_tests.cpp
+++ b/src/test/multisig_tests.cpp
@@ -116,10 +116,6 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
         }
     }
     s.clear();
-    s << OP_0 << OP_0;
-    BOOST_CHECK(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err));
-    BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err));
-    s.clear();
     s << OP_0 << OP_1;
     BOOST_CHECK(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err));
diff --git a/src/wallet.cpp b/src/wallet.cpp
index 6c5af3bdc7..1fe0552109 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -555,7 +555,7 @@ void CWallet::MarkDirty()
     }
 }
 
-bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
+bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet, CWalletDB* pwalletdb)
 {
     uint256 hash = wtxIn.GetHash();
 
@@ -576,7 +576,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
         if (fInsertedNew)
         {
             wtx.nTimeReceived = GetAdjustedTime();
-            wtx.nOrderPos = IncOrderPosNext();
+            wtx.nOrderPos = IncOrderPosNext(pwalletdb);
 
             wtx.nTimeSmart = wtx.nTimeReceived;
             if (!wtxIn.hashBlock.IsNull())
@@ -653,7 +653,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
 
         // Write to disk
         if (fInsertedNew || fUpdated)
-            if (!wtx.WriteToDisk())
+            if (!wtx.WriteToDisk(pwalletdb))
                 return false;
 
         // Break debit/credit balance caches:
@@ -689,10 +689,16 @@ bool CWallet::AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pbl
         if (fExisted || IsMine(tx) || IsFromMe(tx))
         {
             CWalletTx wtx(this,tx);
+
             // Get merkle branch if transaction was found in a block
             if (pblock)
                 wtx.SetMerkleBranch(*pblock);
-            return AddToWallet(wtx);
+
+            // Do not flush the wallet here for performance reasons
+            // this is safe, as in case of a crash, we rescan the necessary blocks on startup through our SetBestChain-mechanism
+            CWalletDB walletdb(strWalletFile, "r+", false);
+
+            return AddToWallet(wtx, false, &walletdb);
         }
     }
     return false;
@@ -916,9 +922,9 @@ void CWalletTx::GetAccountAmounts(const string& strAccount, CAmount& nReceived,
 }
 
 
-bool CWalletTx::WriteToDisk()
+bool CWalletTx::WriteToDisk(CWalletDB *pwalletdb)
 {
-    return CWalletDB(pwallet->strWalletFile).WriteTx(GetHash(), *this);
+    return pwalletdb->WriteTx(GetHash(), *this);
 }
 
 /**
@@ -1581,14 +1587,14 @@ bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
             // This is only to keep the database open to defeat the auto-flush for the
             // duration of this scope.  This is the only place where this optimization
             // maybe makes sense; please don't do it anywhere else.
-            CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile,"r") : NULL;
+            CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile,"r+") : NULL;
 
             // Take key pair from key pool so it won't be used again
             reservekey.KeepKey();
 
             // Add tx to wallet, because if it has change it's also ours,
             // otherwise just for transaction history.
-            AddToWallet(wtxNew);
+            AddToWallet(wtxNew, false, pwalletdb);
 
             // Notify that old coins are spent
             set<CWalletTx*> setCoins;
diff --git a/src/wallet.h b/src/wallet.h
index 1d0dc97c6c..f9cbd3a849 100644
--- a/src/wallet.h
+++ b/src/wallet.h
@@ -275,7 +275,7 @@ public:
     TxItems OrderedTxItems(std::list<CAccountingEntry>& acentries, std::string strAccount = "");
 
     void MarkDirty();
-    bool AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet=false);
+    bool AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet, CWalletDB* pwalletdb);
     void SyncTransaction(const CTransaction& tx, const CBlock* pblock);
     bool AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate);
     void EraseFromWallet(const uint256 &hash);
@@ -903,7 +903,7 @@ public:
         return true;
     }
 
-    bool WriteToDisk();
+    bool WriteToDisk(CWalletDB *pwalletdb);
 
     int64_t GetTxTime() const;
     int GetRequestCount() const;
diff --git a/src/walletdb.cpp b/src/walletdb.cpp
index 054473e7cc..d4d2e16740 100644
--- a/src/walletdb.cpp
+++ b/src/walletdb.cpp
@@ -395,7 +395,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
             if (wtx.nOrderPos == -1)
                 wss.fAnyUnordered = true;
 
-            pwallet->AddToWallet(wtx, true);
+            pwallet->AddToWallet(wtx, true, NULL);
         }
         else if (strType == "acentry")
         {
diff --git a/src/walletdb.h b/src/walletdb.h
index 45c00328a4..2627ef71a6 100644
--- a/src/walletdb.h
+++ b/src/walletdb.h
@@ -76,7 +76,7 @@ public:
 class CWalletDB : public CDB
 {
 public:
-    CWalletDB(const std::string& strFilename, const char* pszMode = "r+") : CDB(strFilename, pszMode)
+    CWalletDB(const std::string& strFilename, const char* pszMode = "r+", bool fFlushOnClose = true) : CDB(strFilename, pszMode, fFlushOnClose)
     {
     }