Merge pull request #498 from Psy-Virus/develop

Translation updated due to latest changes
Fix item art actions position
Re-enable theme support
Remove stream format guessing from browser name
Add Aurora.js support in webplayer
Add transcode settings per player
Fix sidebar header expanded/collapsed icon
Fixed #506: Deactivating now-playing on home screen...
[FEATURE] Add incremental add and update
[FEATURE] Add the coding style on project basis
Change the project settings to better fit the Ampache coding guidelines because
I normally use different settings.
[FEATURE] Remove some empty lines
Associate logged user object to the global user property in login.php
Fixed #504: All Songs in Artist view bug
[BUGFIX] Add trailing slash when needed
And also did a little bit of reformatting
Merge pull request #511 from Razrael/feature/incrementalImport

Add incremental add and update to beets catalogs
Requires user catalog right to edit arts
Avoid additional sql requests on searches
Add allowed object type granularity on zip feature
Bump version to 3.8.0-develop
Fix javascript console.error case
Fixed #518: Site unresponsive during batch download
Update GetID3 to latest project commit
Fixed #519: Track reorder on 3.7.1-develop does not work
Fixed #500: Add quick play urls
Update CHANGELOG.md
Add Login / Register links in header when use_auth setted to false
Fix homepage link in login/register forms