Corrected casting numbers and fixed blocks under ifs not running
Removed debugger statement
Fixed Interpreter.boolarg incorrectly checking strings
Merge branch 'master' of github.com:MathWizz/scratch-html5 into test

Conflicts:
	js/Interpreter.js
	js/primitives/LooksPrims.js
	js/primitives/MotionAndPenPrims.js
	js/primitives/Primitives.js
	js/primitives/SoundPrims.js
	js/primitives/VarListPrims.js

Tested with:
  http://scratch.mit.edu/projects/13841687/
  http://scratch.mit.edu/projects/2192048/