Only build request line items if needed
Fix broken tests
Refactor controller
Refactor edit form
Remove redundant code left over after refactoring
Allow return request line items to have a qty of 0
Include line_item_id in form
Fix bug where extra line items were being added upon update
Only mark request as submitted if user indicates they're ready
Avoid double redirect so flash shows properly
Fix 'only mark as submitted if indicated' behavior
Set spree table prefix
Fix 'only mark as submitted if indicated' behavior
Fix bug which led to infinite recursion
Add thank you page when request is submitted
Send a confirmation email when return request submitted
Add additional content to 'return request submitted' email
Fix mailer spec
Add admin notification when return request submitted