Using makefile at the top level

Now with JS minification, inspired by
https://github.com/dieulot/instantclick/blob/master/makefile
Using minified and gzipped app JS
Including knockout.js and socket.io in minified JS
Adding CSS gzipping
Updating build
Bumping version to 0.3.1
Merge branch 'develop'

Conflicts:
	client/index.html