added socket.io as dep; purely mocha
	modified:   Gruntfile.coffee
	modified:   package.json
test-driven socket.io connection
	modified:   package.json
	new file:   src/app.js
	new file:   src/index.html
	modified:   test/test.js
connection test will fail if connection event message does not match
given string
	modified:   src/app.js
	modified:   test/test.js