[resources] text update: waiting for contact
[resources] text update: contact is offline
[CallActivity] added layout for CallEndReason
[CallActivity] implemented CallEndReason
[SimlarCallState] now has internal gui state
[CallActivity] now stops timer when call has ended
[SimlarCallState] now sets CallStartTime for every GuiCallState
Merge pull request #144 from simlar/call-end-reason-pullrequest

Call end reason pullrequest