Updated line numbers to reflect pre-release fixes
Merge pull request #84 from mitchellgordon95/master

Updated line numbers to reflect pre-release fixes
Added import for import android.view.WindowManager;
finished assignment 0
completed assignment 1
finished assignment 2
added SimpleSemaphore from previous assignment
completed assignment 3
completed assignment 4
assignment 5: almost there, just 4/20 tests failing
fixed startService tests
fixed button handler tests, all done