[Dashboard][Block Admin list] use widgetbox
Fix list action buttons css
Update list checkbox js + css
Merge pull request #2058 from EmmanuelVella/list-checkboxes

Update list checkbox js + css
Merge pull request #2057 from EmmanuelVella/bs3-fixes

Fix list action buttons css for bootstrap 3
Merge pull request #2047 from aitboudad/block_admin_list

[Dashboard][Block Admin list] use widgetbox
remove dependency to SonatajQueryBundle
Merge remote-tracking branch 'sonata-project/master'

Conflicts:
	composer.json