Assignment update should return HTTP 200 Success
Fixes issue 1069
Update test_results
Merge pull request #1075 from danielstjules/issue-1002

Update Test Results
Closes #1074 : UI - Post deadline submissions

addition of a warning in the results/edit page for a post deadline
submission.
Checking in the controller instead of the view

Changing class 'error' with 'warning'
Another bug I forgot
Light cleanup
No longer forces collection id's to be numeric.
Allow API requests to use content negotiation with the Accept header
Changing location of the method past_due_date? in model Grouping
Closes #570 : Assignment due date with sections

- Add error message to show which section(s) is in past
- Add method to know the sections' names
- Modification of past_due_date? which doesn't work in some cases
Addition to issue-415: removal of h in files
Merge pull request #1083 from danielstjules/issue-415

Issue-415: no longer need to use h to sanitize strings.
Merge pull request #1070 from mike-stewart/issue-1069

Issue 1069 - removes raw HTML from grade entry date column.
Merge pull request #1081 from danielstjules/453f33dc1616e6f8d7c33aef7ce13d76e581295b

Quick cleanup and small fix for the API
Closes (PR) #726 : Error checking to the add section modal

 - add padding-bottom to the modal
 - add error checking to the modal
 - add remote requests to do not refresh the webpage
 - change location of select from _student_form to a partial
 - add rjs files to interact with the modal and the select sections
Merge pull request #1085 from GhiGt/issue-726

Closes #721 : Error checking to the add section modal.
Fix: typo (missing +)
Added new contributor
Add unit tests

(problem with commit)