[2014/08/27]
    1. combine mongodb/save2Mongo.js to ping/server.js.

    2. add mongodb/SendDataClient.js for client side Rasperberry Pi to send data to server.
    [2014/08/27]
    change split, because net socket received argv will be seperated by ,
    [2014/08/28]
    after client send date, net socket will be destroyed.
    [2014/08/28]
    change localhost mongeDB to remote host 'mongo_server'
    [2014/08/28]
    add mongodb/pressureText.sh to execute pressure test
    [2014/08/28]
    correct spelling mistake
Merge branch 'master' into freeman

Conflicts:
	ping/server.js
    [2014/08/30]
    change host from 127.0.0.1 to mongo_server
clear ip.log