Change Controllers to Support Version

For each of the controllers, add a version field to each action which
renders a response - then, integrate the version aspect directly into
the application. That way, if we ever have more versions, we can just
access a different version of the page, and it will reflect on the
rating inside the database.
Add Version to the Entities

The version needs to be in the entities so that the whole application
can write to the database for that field.
Minor fix-ups
finish working in Dr. Y's office
Merge branch 'develop' of /home/psarin/public_html/repos/mrating into develop
Finish Fully Implementing the new "Version" URL Segment

When visiting the page, there may be several versions of it in the
future - it is important to know which version each rating corresponds
to.