Added sleeping pill fragment and added soundfile
Merge branch 'development' of https://github.com/henke101/Mindy into dev
Added link to sleeping pill from ExcercisesFragment
Added cleanup functionality to sleeping pill fragment
Merge branch 'development' of https://github.com/henke101/Mindy into dev
Added an AudioIntentReceiver to detect if headphones are unplugged
Added brief description of what is to be done in the intent receiver