Added code to classes that are associated with the thread controller classes.
Merge remote-tracking branch 'upstream/master'
Added comment controller related classes.
Added CommentList as part of the comment model.
Fixed adding commentlist file.
Added code to the comment model and finshed up with what needs to be done in the comment controller so far.
Merge pull request #59 from kchow3/master

Added code to the comment model and the controller for the comment model.