Update composer.json

Update UserManager.php

Merge pull request #1489 from claroline/fixing-model-copy

Fixing workspace model directory copy

Merge pull request #1486 from claroline/csv-serialize-test

Csv serialize test

Update composer.json

Update ClaroUtilities.php

Update ClaroUtilities.php

Merge pull request #1480 from claroline/fixing-log-manager

Fixing log manager.

ResourceNode API.

Removing theme css from tinymce.