Rewrote PCR as a module with a client. Builds but does not work
Made PCR a singleton object
Made coursehistory more compatible with the new PCR
Modified course to work with the new PCR
Added a mixin to take care of common code among resources
Updated the review and section object to work with the new PCR
Had the course and coursehistory use the resource mixin
Fixed a couple of bugs in PCR
Fixed a few bugs in review
Fixed a little bug in coursehistory
Merge pull request #5 from gterrono/rewrite

Initial rewrite of the sdk