Quick fix to add json lint to grunt file
Merge pull request #205 from adaptlearning/issue/#204

Quick fix to add json lint to grunt file
Forgot to add to package.json
Updated grunt file to include check-json task

fixes #227 and also fixes duplicate _ids
Re-factored methods in gruntfile.js
Updated if statements to switch
Fixed bug with course id not be able to be changed from "course"
Merge remote-tracking branch 'origin' into issue/#227

* origin:
  Forgot to add to package.json
  Quick fix to add json lint to grunt file

Conflicts:
	Gruntfile.js
	package.json