Updated language translations
Bump version to 0.9.2
Support key continuity features of ZRTP.

1) Add verification button to SAS UI.

2) Support the retained secret stuff from ZRTP.

3) Add a few additional visual indicators to denominate the in-call
   screen as belonging to RedPhone.
Updated language translations
Rename polish strings.
Bumped version to 0.9.3
Merge remote-tracking branch 'origin/master' into call_metrics

Conflicts:
	res/values/strings.xml
	src/org/thoughtcrime/redphone/call/CallManager.java
Add copyright headers
Fix layout on small screens
Force single instance of task
Fix notification display and dismiss
Dismiss initial call quality dialog when feedback is declined