sorting functionality for username, firstname, lastname, and section on marks spreadsheet
adding sort_by cookie for grades
asc/desc works over pagination
sorting works with per page drop down
Jump to works only as for last name, so dont display it for other sorting orders
Fix indentation, and push ordering into get_filtered_items method
limit sorting to tas and admins
only display section for tas and admins
adding functional test for cookies in grade forms controller
Push sort and order into query. Fix line characters to 80
strip out uncessary fields in pagination helper
FIX for issue 958, change single quote to double so that removing works
FIX for issue 619, fixed sorting on columns that contain html
 Fixed issue 97. Required fields are now indicated when creating or editing a grade entry form.
Adding to fix for issue 97. Including locale files.
Fixed error in previous commit.
Fix; creates grace period and penalty objects at proper time
Adding french localization for required fields in the grade entry and assignment forms.
Add check for invalid date format
Fix issue-953: gave the annotation category pane a percentage-based width and added a min-width to the body.