Faster loading

The big fix here is faster loading. There's also a couple of minor bug fixes for #52 and #53 that have been sitting around for a while and needed to be integrated.

Fix setTargetAddress

When using http://192.168.7.2/static/bonescript.js, setTargetAddress wasn't working because of the scope of myrequire().

Found when doing: beagleboard/cloud9-examples@94c5f17