Add tests for translation DELETE dispatch.
Update acceptance tests.
Add tests for POST dispatch.

Move descriptor.get_context test to lms tests.
Add query parameter to translation dispatch.
Response to format parameter of translatin GET request.
Fix Acceprance test: Metadata Editor.

move handlers to proper scores.
Split video player into smaller files.

Add ugettext and fix typoes.
Add changelog.
Add test for sub_filename.
Move dispatches to suffixes and fix quality.