Add tests for EmbedButton CRUD
Add tests for administrative UI
Add missing access modifier
Fix name of permission
Merge pull request #89 from cs-shadow/embed-button-crud-tests

Embed button crud and admin UI tests
Remove obsolete library file
Rename tag of container elemet to div if it was drupal-entity
Move node rename logic inside setDomNodeContent
Add tests to ensure that drupal-entity tag is correctly replaced
Fix typo in function name
Merge pull request #86 from cs-shadow/custom-tag-followup

Rename tag of container elemet to div if it was drupal-entity