• Extend the SIPCommButton to allow a rollover image.
• Extend the SIPCommButton to allow a pressed image.
• Fixes construction of mute button used in full screen mode.
• Fixes a deadlock in the audio level functionality upong call hangup which prevents further calls from being established.
• Fix issue#JITSI-921 , ConcurrentModificationException at MetaContactImpl.removeCapabilities.
• Fixing random jabber test fails.