Added user picker to tinymce
Resolved conflicts after merge
Updated core bundle
Merge commit '52e50d5'
Added user-picker and accordion tinymce plugins
Modified to follow notification changes
Merge http://github.com/ptsavdar/CoreBundle

Conflicts:
	Resources/public/js/tinymce/tinymce.js
	Resources/translations/platform.en.yml
	Resources/translations/platform.fr.yml