Creating nodes with an initial x/y or fixed position now works as advertised
Calling ParticleSystem's .screen() method without arguments will now return an object with fields describing the current screen state
Fix for problems on chrome when running from file:// urls
Added a shell script to run a local http server so the demos will work without needing to be hosted somewhere
- Now supplementing brute-force repulsion calculations with the more-efficient (but noisier) barnes-hut algorithm. Use the ParticleSystem's .precision parameter to control the accuracy/speed trade-off.
- Initial release