Added new Admin Control pages for new Characters, Courses, and Submissions.  Still working on Admins adding Admins (low Priority)

Added Guest system for new user access.  Users will not longer be referenced by the whitelist, but instead register a new Character account which is approved/denied by an admin.  Un-registered guests can preview much of the site with the guest account
Added XP chart info to the Character Sheet
Added Level Achievement images
Users can now specify custom avatars
Added a GuestHandler class for routing the special guest access pages
Now displays Character username rather than googleUser.Nickname
Added Courses to Entity defs
Streamlined and Universalized some methods for accessing/deleteing entities
Added Character Registration (signup) page
Display Full name rather than email in submission page
Cleaned up some javascript errors/bugs