#123 - fixed docs

Cleaned up the docs code to fix #123. Found offending comments on:
tween/Actuate.hx
tween/MotionPath.hx
tween/actuators/GenericActuator.hx
tween/actuators/SimpleActuator.hx
utils/JSON.hx
utils/json/JSONDecoder.hx
utils/json/JSONEncoder.hx
utils/json/JSONParseError.hx
utils/json/JSONToken.hx
utils/json/JSONTokenizer.hx