MOB-2403 killswitch listeners added
MOB-2403 app version changed, killswitch listener added in ChatSample
MOB-2403 saving user changed
MOB-2403 shared preferences changed, chat disabled dialog added on orientation change
MOB-2403 listeners changed to single value events
MOB-2403 killswitch listener changed to helper, context changed to activity, activity extracted to field, preferences extracted to field, checkStatus method changed, removing listeners added
MOB-2403 empty line fixes
MOB-2403 editing preferences changed, listeners removed in activity
MOB-2403 enterCanceled flag removed, listener changed
MOB-2403 comments removed, added null check
MOB-2403 chat not restored if is disabled
MOB-2403 log removed
Merge pull request #8 from Wikia/feature/MOB-2403_user_blocking_and_killswitch

Feature/mob 2403 user blocking and killswitch