LP1907977: Display course name and number in course material editor

LP1907977: Display course name and number in course material editor

To test:

1) Go to Administration > Local > Course List
2) Make sure you have a variety of courses added.
3) Double click on a course that already has materials
attached to it.
4) Go to the materials tab.
5) Select a material and choose Edit
6) Note that the Course combobox shows both the course
number (HST243) and course name (History of Indonesia).
7) Note that you can blank out that field and type to
complete to get other courses in the same format.

Signed-off-by: Jane Sandberg <sandbej@linnbenton.edu>