Code tidy
Tidy up timer class
Change for-in to enumerateWithBlock:
FInish wiring for Time Remaining Class
Merge branch 'feature/timeRemainingClass' into develop
Fix Notifications Controller Zombie
Tidy up timerDidComplete in AppController
General Tidy-up
Bump version number and update README.md
Merge branch 'release/v0.7.6'

Conflicts:
	Timer/VWTTimer.m
Clean up merge conflict
Change timer interval back to 1.0s
Tidy up Timer.m