change DeviceLanguageProvider to interface
device language code retrieval on Android
Merge branch 'DA-120' into unstable

* DA-120:
  device language code retrieval on Android
  change DeviceLanguageProvider to interface
<DA-313> fix "drallo successful" alert
<DA-313> clean up css
<DA-313> Merge branch 'unstable' into DA-313
<DA-313> fix merge
<unstable> Merge branch 'DA-313' into unstable
fix configuration mappings
fix defines in DralloLibrary
<DA-313> update android css