Uses DownloadManager service to download newsletter PDF's.
New Android Studio version changed the iml files a bit.
Fully specify the supports-screens element.
XML code formatting
Remove the refresh button, it is not needed.
Fix the parse credentials warning in the build script.
Use ProGuard to shake out unused library classes.
Update parse.com dependency to latest version.
[accessibility] Adds hints to the main menu items.
[accessibility] Set a subtitle when one of the subpages opens.
[accessibility] Make an announcement whenever a subpage opens.
Merge branch 'master' of github.com:barend/sebastiaanschool into barend-master

Conflicts:
	Android/Sebastiaanschool/build.gradle