A user can post a comment on a match_request

* A use can comment on a match_request
* Add Edit and Delete to comment
* Allow user to edit match request
Merge pull request #7 from elijahkim/ek-comments

Ek-comments
A user can accept a match_request

* When a user accepts a match request, a match is created
* Make match_creator model
* A use can comment on a match_request
* Add Edit and Delete to comment
* Allow user to edit match request

Match Request button fix
Start testing

* Add tests to match model
* Add tests to match_request model
* Add tests to comment model