Enhance connected users display
Fix #1325 : Fix collection redirection after label settings
Merge pull request #505 from romainneutron/connected-users

[3.8] Enhance connected users display
Add unique key constraint on sbas_id / server_coll_id
Optimize xsendfile mapping generator, use the factory to generate mapping
Remove unit tests log message
Merge pull request #506 from romainneutron/duplicate-collections

[3.8] Add unique key constraint on sbas_id / server_coll_id
Merge pull request #507 from romainneutron/fix-1325

[3.8]  Fix #1325 : Fix collection redirection after label settings
Merge pull request #508 from romainneutron/xsendfile

[3.8] Update xsendfile configuration
Fix #1243 Phraseanet enabled languages is now configurable
Ensure configuration is set up before trying to look for special conf