Fixed bug that video got enabled on destroyed scope.
Fixed stuck in close state error.
Update to font-awesome 4.1.0.
Merge pull request #45 from theurere/update-fontawesome

Update to font-awesome 4.1.0.
Defined and implemented contact request/response protocol and data structure.
Implemented first simple Ui for contacts in chat.
Fixed nil pointer.
Started end points for contact storage.
Updated autocall feature to reflect API changes for contacts.
Do not allow to send contact requests to own userid sessions.
Implemented support to request and accept contacts when in a call with that contact.
Implemented next bunch of contact services.
Cleaned up borked revision checks.
Implemented buddySession which aggregates sessions of the same userid.
Make sure to set scope for userid if none is there yet.
Only show user count when there is more than 1.
Implemented display of aggregated sessions.
Implemented buddy list output display mapping and the methods to fill it.
Implemented proper leave of aggregated buddies.
Added animation for session list.