Removed cost views
Merge branch 'develop' of github.com:allegro/ralph into RALPH-1871
Removed cost models
Migration removing the extracost from db
Removed catalog views and models
Migration deleting models related to catalog
Merge branch 'develop' of github.com:allegro/ralph into RALPH-1871
Removed reports
Merge pull request #1057 from zefciu/RALPH-1871

Removed spurious views