Bug fixes

10b24cc Updated dependencies
ed71c6b Extermalize fix-webm-duration, remove unused webrtc-adapter
297aef7 Consistent avatar handling in new group creation
161f544 7135553 Explicitly set audio recording bit rate
6de41f4 fix for #102.1: Use selector cursor over contacts.
1913ed0 fix for #102.2: soft-wrap long URLs in messages.