Added HomeTab creation and edition
Merge remote-tracking branch 'upstream/master' into issue-125-widget-tabs

Conflicts:
	src/core/Claroline/CoreBundle/Resources/translations/platform.en.yml
	src/core/Claroline/CoreBundle/Resources/translations/platform.fr.yml
	src/core/Claroline/CoreBundle/Resources/views/Administration/layout.html.twig
Allowed creation of home tabs
Merge remote-tracking branch 'upstream/master' into issue-125-widget-tabs
Change Event\Event namespace to just Event + adding section on logs in doc
Update doc with event tracking system
Added Home tab creation and configuration
Merge remote-tracking branch 'upstream/master' into issue-125-widget-tabs

Conflicts:
	src/core/Claroline/CoreBundle/Resources/views/Tool/desktop/home/configuration.html.twig
	src/core/Claroline/CoreBundle/Resources/views/Tool/workspace/home/home.html.twig
Updated migrations files
Adding raw filter to display html value
Remove commented code
GUI update
Adding tracking event logs in blogBundle
Update blog plugin after correction
Merge branch 'master' into log-event-improvement
Finished HomeTabs configuration
Readd all stuff for event tracking in the CoreBundle
Update blog plugin with custom log
Comment code for childupdate action until modification for better management for custom log + correct namespace in test
Update blog plugin after correction