webworker polyfill

[max-mapper]

dunno if this makes full sense but I think it might be interesting to polyfill the web worker API, that way I could use this with https://github.com/substack/webworkify

[inh3]

Thanks for the suggestion, will consider this in the future. However, for now the main focus will be to provide multiple thread pools, comprehensive error/exception handling and providing the 'require' functionality of Node.js or something similar for the thread pool loaded files.