First step for editable content.

Added a new user_data table and some API functions
to save and retrieve combined results.
Updated images
Added “not tested” (nt) status
Set user defined result from details view.
Merge branch 'develop' into feature/editable
Allow not tested (not automated) results in result list
Mini toolbar to change test result.
Updated checklists (added manual tests)
Handling external click on details view.
Better UI for asking user defined values deletion.
Merge branch 'develop' into feature/editable
Merge branch 'feature/editable' into develop
Merge branch 'master' into develop
CHANGELOG update
Updated test-runner.
Opquast Website is the only default checklist.
Added result code in CSV export.
Version 0.9.4