Merge branch 'master' of https://github.com/claroline/CoreBundle into user-list-pic

Conflicts:
	Resources/views/Administration/userList.html.twig
merged
Validate plugin configuration even for every step of the process
Update resource type plugin configuration when updating plugin
Coding style correction
Merge branch 'master' of https://github.com/claroline/CoreBundle into user-list-pic

Conflicts:
	Resources/translations/platform.en.yml
	Resources/views/Administration/userList.html.twig
	Resources/views/Administration/userListPics.html.twig
Remove uses of useless variable
Correct coding style
Displaying name of the plugin which is currently manage + validate plugin configuration
Remove useless variable
Update phpDoc
Correct coding style and adding phpDoc + fluent interface for getters
Adding updateMode flag for passing through the resource type validation condition when updating plugin configuration
Correct class name for dealing with custom action in resource menu
route pagerFanta
Merge branch 'master' of https://github.com/claroline/CoreBundle into user-list-pic
Fixes claroline/Claroline#375
Merge branch 'new_branch_name'
Correct update of the resource icon
Adding fluent API capability to MenuAction class