Use traceur and ecmascript 6 features
Rearrange dat gui

stays on top of x3d canvas now
Clean up old code add some debugging output to dat gui
Add source script to use local binaries

do `source script/source` to use e.g. karma
Merge branch 'ecmascript6'
Remove es6 syntax but leave framework in place

was too hard to get testing to work
Fix test
Update karma and jasmin and everything else