Added user to the comment model.
Updated comment look and feel.
Add comments appear when they are posted.
Updated reviews to have a user associated with them.
Updated look and feel of reviews.
Added avatar to the User model.
Added some default images for the auto generated users.
Added animation support and applied them to the various interactions.
Added missing bower dependency for the ng-file-upload library.
Added gulp task to move images to .tmp folder.