Handle call disconnect reason (mo/mt hangup, network error)

Signed-off-by: Martti Piirainen <martti.piirainen@oss.tieto.com>
Merge pull request #6 from marttipiirainen/call_disconnect_reason

Handle call disconnect reason (mo/mt hangup, network error)
[telepathy-ring] Handle ofono VoiceCallManager Forwarded signal.
Merge pull request #7 from nemomobile/forwarded

[telepathy-ring] Handle ofono VoiceCallManager Forwarded signal.
[telepathy-ring] VoiceCallManager Forwarded signal can be received before CallAdded.
Merge pull request #8 from nemomobile/forwarded

[telepathy-ring] VoiceCallManager Forwarded signal can be received befor...
[telepathy-ring] Request a SMS flash channel when delivering class 0 messages
Merge pull request #9 from special/class0

[telepathy-ring] Request a SMS flash channel when delivering class 0 messages