Update grunt to 0.4.4, grunt-contrib-jshint to 0.9.2, and grunt-contrib-watch to 0.6.0 in package.json.
Update grunt to 0.4.4, grunt-contrib-jshint to 0.9.2, and grunt-contrib-watch to 0.6.0 in package.json.

davidensinger/webworke.rs,davidensinger/webworke.rs,davidensinger/webworke.rs