Add collection labels to api
Add sort on last applied template
Enable users time restrictions per databox
Update changelog
Bump to symfony 2.3
Merge pull request #397 from romainneutron/symfony-2.3

[3.8] Bump to symfony 2.3
Merge pull request #396 from romainneutron/time-limit-sbas

[3.8] Time limit sbas
Merge pull request #395 from romainneutron/template-sorting

[3.8] Add sort on last applied template
Merge pull request #393 from romainneutron/collection-labels-api

[3.8] Add collection labels to api
Apply time limits on template application
Update changelog