[translate]: Added several tests for the db_helpers (up to 90% coverage). Commented out the old groupless old app.xml API.
[translate]: Added app creation endpoint (selectlang) tests
[translate]: Added delete endpoint tests. Improved delete endpoint and defined return codes better. Added some delete endpoint security tests.
[translate]: Renamed file and minor changes -a
Merge branch 'master' into adaptor_golab_tools