Groups: Display flair for users in room history.
Groups: Display flair for users in room history.

Force the matrix session to refresh the cached data related to the publicised groups of the users when the application enters in foreground

vector-im/riot-meta#118

vector-im/riot-ios,vector-im/riot-ios,vector-im/vector-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/vector-ios,vector-im/vector-ios,vector-im/riot-ios,vector-im/riot-ios