work on blob worker implementation
more work on blob worker implementation, some examples back up to running
Merge branch 'master' into blob_worker

Conflicts:
	build/ammo_proxy.js
	build/ammo_proxy.min.js
	src/worker/ammo_worker_api.js
use minified ammo
all example scenes are now working
better performance example
better user data structure attached to objects in worker
refactor way that object ids are created and reused