TA Course Knowledge Level

[andreykul]

Admin should be able to set up a list of courses.
TAs should be able to rate the level of knowledge they have of each course.

The list of courses can be stored a single comma separated string in the settings table.
While the rating will be stored in a separate table with ta_id and an integer (1-5)

The link to the list of courses for each TA should be through their profile page.