v1.5.2

Upgrading - different to usual process!

To upgrade run rm public/assets/js/bower_components/ -rf then see our upgrading documentation for further instructions.

Patches

1. Fixes more link in statements API to improve conformance. #663 #665
2. Fixes instructor filtering in reports to improve UX. #655 #667
3. Reduces installation requirements to improve UX. #668