I need to build babylon.js files. Am using Eclipse 4.4 (Luna) on Ubuntu 14.04 LTS. I built close to the directions on thread: http://www.html5gamedevs.com/topic/7747-contribute-to-bjs-in-javascript/ That thread assumes you are using Windows. The changes I made are that I just installed command-line git from the Ubuntu package repository. I built and installed Node from source (0.10.31). This is because there is a name conflict with the name 'node' in the Ubuntu repository & things are not in the directory tree Gulp expects on linux of '/usr/local'. I changed to the Gulp directory a