Complete booking seats sample..

This sample shows how to use socket and json function with jade
Implement e-commerce samplem in /ecommerce 

It has a timer that is expired in a certain time you set (default:
5secs)

This is my first try to use JQuery Mobile, so I think there is some
inferior. 

In adition, I also update socket related function, because whenever I
use socket for new sample, I have to change initialization about socket.