added the class btn-group to the main_actions menu
properties should be private/protected
Removed the btn-danger class from the delete button
fix for metadata
Update .travis.yml
Merge pull request #84 from Kunstmaan/bootstrap_update

Bootstrap update
Merge pull request #83 from Kunstmaan/fix/media-entity

properties should be private/protected
Merge branch 'master' into 2.1

* master:
  Update .travis.yml
  fix for metadata
  Removed the btn-danger class from the delete button
  properties should be private/protected
  added the class btn-group to the main_actions menu