Merge branch 'develop'
fix blurry play/pause overlay in videoplayer activity
fix videoplayer overlay background on lollipop
use a radius of 37.5% of parent width to match pre-lollipop look
Upgraded build tools
Merge branch 'fix_lollipop_overlay_background' of git://github.com/jmue/AntennaPod into jmue-fix_lollipop_overlay_background
Merge branch 'fix_blurry_videoplayer_overlay' of git://github.com/jmue/AntennaPod into jmue-fix_blurry_videoplayer_overlay

Conflicts:
	gradle/wrapper/gradle-wrapper.properties