Merge branch 'master' of https://github.com/claroline/CoreBundle into hometab-new-gui

Conflicts:
	Resources/translations/platform.en.yml
	Resources/translations/platform.fr.yml
Added config button
Added delete home tab
Merge branch 'widget-title' of https://github.com/ngodfraind/CoreBundle into hometab-new-gui
Added management of desktop home tabs in home page
Added workspace home tab configuration from home page + widgets display
Added delete and reorder for widget home tab configs
Refactored delete icon
Added widget rename and configure
Merge branch 'hometab-new-gui' of https://github.com/kitan1982/CoreBundle into widget-gui

Conflicts:
	Controller/Widget/SimpleTextController.php
Widget form redirections.
Widget configuration error handling.