Multiple Choice support. Outstanding issues: 
* Cleanup of the way names are handled
* Figure out why $.ajax needs a stringify
* I'd prefer to keep both input types and response types as classes. This is necessary for richer, AJAXy interactions. 

Do not double-append the XML path in caps module

Anonymous user

This fixes the bug in answers reset feature

Conflicts:
	rakefile

Conflicts:
	djangoapps/courseware/module_render.py
	djangoapps/courseware/modules/capa_module.py

Grade refactor

Pmitros/xmod reuse refactor