* master:
Fix background migration cleanup specs
Fix JS; make buttons sr accessibile; fix overlay
Isolate stage_id reference clean up migration
Fix eslint
Make sidebar accessible on mobile
Add mobile navigation on project page
Fix database schema version number
Fix background migrations module specs
Remove migration dependency from stage_id migration
Remove obsolete argument from bg migrations code
Add specs for stage_id reference cleanup migration
Add pending set of specs for stage_id cleanup migration
Rename stage_id reference clean up migration
Implement build stage_id reference migration clean up
