Add Multiblock model, parser, and tests.

test/test_helper.coffee

@@ -15,6 +15,7 @@ global._        = require 'underscore'
 global.Backbone = require 'backbone'
 global.assert   = chai.assert
 global.expect   = chai.expect
+global.inspect  = require('util').inspect
 global.should   = chai.should()
 global.sinon    = require 'sinon'
 global.util     = require 'util'