@Anirudh94 Grunt and Gulp are pretty cool too. With Grunt/Gulp watch you can watch a directory and fire off a shell command if anything in that directory changes. For example, if you're developing local code and need to rsync it up (or scp or whatever) you can just make a grunt task that does that automatically.
@Anirudh94 It looks like OpenShift wasn't updated with the most recent changes. The React branch worked for me - does it work for you?