Engine: fixes #3342 - foreign keys migration
Added back the foreign keys migration
Fixed a couple of tests for FK violations
Bastion: Converts to less based stylesheets completely and removes SCSS
dependencies.
More test fixes related to FK change
Merge pull request #3641 from ehelms/cleanup-scss

Bastion: Converts to less based stylesheets completely and removes SCSS
Merge pull request #3621 from parthaa/fk

Foreign Keys migration
Bastion: adding angular templates to the $templateCache.