- do one and only one initialSync when the app starts. (recents-controller does not do its own anymore)
 - initialSync: get only the last message per room instead of default number of messages (10)

Prevent recents-controller from loosing its data each time the page URL changes

Use the room_display_name when presenting on the home page, and not the room_alias which may not be set.

This reverts commit c3f9d8e4.

Use the room_display_name when presenting on the home page, and not the room_alias which may not be set.

handle m.room.aliases for id<->alias mapping; remove local_storage map; stop local echo flickering by removing opacity transition for now; implement /join

Merge branch 'captcha' of github.com:matrix-org/synapse into develop

Captchas now work on registration. Missing x-forwarded-for config arg support. Missing reloading a new captcha on the web client / displaying a sensible error message.