Yufan(recent works)

1. Back-End: Comments Model && Server Controller && Comments Route && Comments Model Test Added.
 
2. Front-End:Comments Submit Form && Default Comments Controller(Remove Intended However Getting Error) && Comments Module && Comments Service Added (RemoveAnythingYouPlease).

3. Bug-Fixes: Bug description: Adding/removing db to/from portfolio in view-db html does not refresh the user list; Solution: database controller->$window injection && $window.location.reload() Added.

4. Test-Code: db server controller test code attempted(unfinished)  && portfolio field test code attempted(unfinished)