Worked on cover crop and steps to Material Design
More steps to Material Design
Update build-tools
Reverted useless styles
Removed previous/next keys and replaced remoteControlClient previous/next with fastforward / rewind
Suppress deprecation for remoteControlClient
New icons on adding book
Changes in database to keep track of a single position
Further worked on image adding progress
Cover crop completed
Loading images async in book overview
Handling playback of last file correctly
Setting notification from onPause onResume
Big rework of BookChoose. Recyclerview and Grid. And many more improvements
Moved Content based things to own folder