Pre-release fixes
Merge pull request #82 from mitchellgordon95/master

Pre-release fixes
Added some fixes.
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;
Moved DownloadHandler definition a bit.
More DownloadHandler improvements.
Fixed dependencies.
Fixed the lock screen problem.
Zapped a "hint" that was OBE.
Added more documentation for Executor thread pools.
Added new ACronymApplication.
Added new assignment.
Merge remote-tracking branch 'upstream/master'