This is now the minimum required version.

It fixes connection errors after facebook discontinued support for old versions of facebook messenger for android. While most of the protocol implementation was already above that version, there was a subtle change that broke fetching of sync_sequence_id, and the previously empty MQTT user agent string is now considered an old version too. See ticket #306

• Set the MQTT user agent to look like Orca-Android 38.0.0.22.155
  • Fixes errors when trying to send messages
• Use the new ThreadListQuery hash for seq id only, not for thread queries
  • Fixes other errors introduced by the previous release (0.9.1)

Windows users: get the latest build from the usual place: https://github.com/dequis/purple-facebook/wiki/Installing-on-Windows