Merge branch 'develop' into anoa/jitsi_ptt

* develop: (22 commits)
  v1.3.0
  Prepare changelog for v1.3.0
  v1.3.0
  Upgrade to JS SDK 2.2.0 and React SDK 1.4.0
  Remove reactions feature flag from docs and config
  Remove edits feature flag from docs and config
  Remove reactions feature flag from docs and config
  Remove edits feature flag from docs and config
  cachebust config file requests
  v1.3.0-rc.3
  Prepare changelog for v1.3.0-rc.3
  v1.3.0-rc.3
  react-sdk rc.3
  v1.3.0-rc.2
  Prepare changelog for v1.3.0-rc.2
  v1.3.0-rc.2
  Upgrade to JS SDK 2.2.0-rc.2 and React SDK 1.4.0-rc.2
  Convert install-app-deps to subcommand
  v1.3.0-rc.1
  Prepare changelog for v1.3.0-rc.1
  ...

electron_app/package.json

@@ -2,7 +2,7 @@
   "name": "riot-web",
   "productName": "Riot",
   "main": "src/electron-main.js",
-  "version": "1.2.4",
+  "version": "1.3.0",
   "description": "A feature-rich client for Matrix.org",
   "author": "New Vector Ltd.",
   "dependencies": {

electron_app/riot.im/config.json

@@ -30,9 +30,7 @@
         }
     },
     "features": {
-        "feature_lazyloading": "enable",
-        "feature_reactions": "enable",
-        "feature_message_editing": "enable"
+        "feature_lazyloading": "enable"
     },
     "enable_presence_by_hs_url": {
         "https://matrix.org": false