Implement room version capabilities in CS API (#866)

* Add wiring for querying the roomserver for the default room version

* Try to implement /capabilities for room versions

* Update copyright notices

* Update sytests, add /capabilities endpoint into CS API

* Update sytest-whitelist

* Add GetDefaultRoomVersion

* Fix cases where state package was shadowed

* Fix version formatting

* Update Dockerfile to Go 1.13.6

* oh yes types I remember

* And fix the default too

1 files changed, 18 insertions, 0 deletions

diff --git a/roomserver/version/version.go b/roomserver/version/version.go
index 74d04d9b..0943e384 100644
--- a/roomserver/version/version.go
+++ b/roomserver/version/version.go
@@ -1,3 +1,17 @@
+// Copyright 2020 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package version
 
 import (
@@ -69,6 +83,10 @@ var roomVersions = map[RoomVersionID]RoomVersionDescription{
 	},
 }
 
+func GetDefaultRoomVersion() RoomVersionID {
+	return RoomVersionV1
+}
+
 func GetRoomVersions() map[RoomVersionID]RoomVersionDescription {
 	return roomVersions
 }