First upload and license implementation
Fix #252
Merge branch 'develop' of github.com:ampache/ampache into develop
Fix code style
Fix scrutinizer issues
Fix democratic vote remove when no user auth (fix #251)
Fix javascript function wrong visibility
Add check to avoid fatal error if "Uploads catalog destination" setting undefined
Improve user resitration UI
Add user avatar and api key change on user account preferences
Fix user avater max file size check
Add missing max_upload_size setting
Improve installation process to avoid manual action for each config file
Add max upload size check in installation tests
Update README.md
Fix SubSonic API errors when catalog = -1 and when Ampache library contains an artist without any label
Merge remote-tracking branch 'upstream/develop' into develop
Ger Tranlation + other translation files updated...

... due to the additions and changes in Ampache since last translation
update.