CYB-258 - Comments: clicking a link in a comment throws an error

https://jira.ets.berkeley.edu/jira/browse/CYB-258
CYB-241 - Likes/Dislikes not appearing on detail view of a gallery item

https://jira.ets.berkeley.edu/jira/browse/CYB-241
CYB-255 - Gallery sorting by comments, likes, and dislikes doesn't work

https://jira.ets.berkeley.edu/jira/browse/CYB-255
CYB-268 - Front-end: Users should not be able to like their own items

https://jira.ets.berkeley.edu/jira/browse/CYB-268
Merge pull request #159 from christianv/CYB-255

CYB-255 - Gallery sorting by comments, likes, and dislikes doesn't work
Merge pull request #150 from christianv/CYB-258

CYB-258 - Comments: clicking a link in a comment throws an error
Merge pull request #158 from christianv/CYB-241

CYB-241 / CYB-268 - Likes/Dislikes not appearing on detail view of a gallery item
CYB-269 - Add date stamp to comment & sort newest first

https://jira.ets.berkeley.edu/jira/browse/CYB-269