Kateryna Kostiuk authored Nov 01, 2017 and Andreas Traczyk committed Nov 01, 2017

Fix badge value on Conversation TabBarItem:
- handle case when account does not exists
- filter out messages that shown on contact request conversation

Change-Id: Ife44a70b2d0b728876be648ebad2e3d772128ce5
Reviewed-by: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>