#21 Added api for dashboard and webapp communication
Added som JavaDoc to dashboard application
Fix #22 create basic gui
Refactored strings
Fix: added comments and removed unused code
Merge branch 'development' of github.com:Snadde/infotainment into dashboard
Fixed duplicate sending bug
Refactored out the service
Cleaned up some class and field names and remove unused code
Refactored mqtt worker and controller. Also remove hard coded topics
Added debug information and lowered minSdkVersion
Renamed dashboard to headunit
Added playlist app, initial commit
Renamed callback interface
#23 Basic GUI in place for playlist
#23 added play action