Initialize "discussion" app
Create Discussion model
Create discussion api views
Add acl tests for discussion api
Use rest_framework helpers to write api tests
Discussion apis: fields in urls must not be posted
Make api acl tests pass
Initialize review js app structure
Initialize js configuration variables
Initialize discussion modal
Use the api to display the review discussion
Add form to post new comments
Initialize discussion submit form
Create new note on form submit
Merge branch 'discussion'