feature request: instructor/TA endorsements

[khale]

It would be nice to be able to allow instructors/TAs to endorse specific student answers to questions as being good/correct ones. Or perhaps to be able to promote a specific comment within a discussion to an answer.

[angelaz1]

I'd like to bump this feature request - as an instructor, it's very helpful for us to know which student answers have been verified by other instructors, and also endorse answers as a method to encourage students to answer more posts; as a student, it's helpful to know whether a student's answer has been verified by an instructor.

[umutacar]

This isdone.