datetimepicker creation
add datetime picker
Merge branch 'master' of https://github.com/claroline/CoreBundle into datetimepicker
Personnal WS name : Add '-' to translation string to allow more flexibility for overriding translations
close claroline/Claroline#476 close claroline/Claroline#478
getting updates form masterCore
Merge remote-tracking branch 'projet_original_master/master'
Synchronisation avec le projet original
Merge branch 'master' of https://github.com/claroline/CoreBundle into email-bugs

Conflicts:
	Resources/translations/platform.en.yml
	Resources/translations/platform.fr.yml
Fixing error on download empty zip.
fixed hierarchy tag bug
.
Merge pull request #554 from ngodfraind/bugfix

Fixing error on download empty zip.
Merge pull request #555 from ngodfraind/master

Removing empty file.
Zip files can be uploaded and uncompressed.
Merge branch 'master' of github.com:claroline/CoreBundle into upload-zip

Conflicts:
	Resources/translations/platform.en.yml
	Resources/translations/platform.es.yml
	Resources/translations/platform.fr.yml
Merge branch 'master' of github.com:claroline/CoreBundle
clean up agenda layout
Minor correction to clean up code
Merge remote-tracking branch 'projet_original_master/master'