edit comments controller and changed photo show view to have a comments form
nested comments under photos in the routes
changed paths to comment on photos; comments functioning
changed validation for comments
modified cancan abilities to fix logged out person
changed album show view to show images and not photo names
merged comments with master
Merge branch 'master' into comments
Merge branch 'master' into comments
added delete link on comments
fixed comment ability for users
users can now delete their own comments; fixed double message when comments created
changed ability from :vote to :like and :unlike - can ability still not working for registered users
fixed cancan ability for photos, albums and likes for registered users