Add missing translations and remove unnecessary label
Merge pull request #500 from symfony2admingenerator/batch-translations

Add missing translations and remove unnecessary label
Update contributing.md

Updated contribution docs - added information about git stash
Update contributing.md

Add missing $ signs in console examples
Update contributing.md

Fix docs - remove white space
Update contributing.md

Fix example `$ git stash list` output
Merge branch 'master' into fix-object_actions

Conflicts:
	Resources/templates/CommonAdmin/ListTemplate/batch_actions.php.twig

Fix conflicts