Replaced a test by the relevant model method
Bug fix for issue #1056
Added feature related to issue #230 only for admin (404 error with grader)
Added a unit test stub for SubmissionsHelper
Corrected test stub for SubmissionsHelper
FIX for issue 1027 - updated code base to use appropriate result (remark or original)
FIX for issue 1028, highlight old and new marks in rubrics
FIX for issue 1028, populate new remark result with old marks
Merge pull request #1060 from m-wu/issue-1028

Highlight rubric and populate remark result.
Closes #1028
Update methods that get results for file dealing with the icons on the grade table to use the appropriate helper method
Made section collection available for graders - issue #230
Merge pull request #1058 from akwok18/issue-1027

Updated code base to use appropriate result.
Closes #1027 -
Merge pull request #1057 from Keraunos/Issue#230

Allow to collect all submissions for one section when the collection date for that section has passed
Closes #230