add body for saveContainerlist() and getContainerlist()
add code for getConfig()
misc changes and error corrections
now when reload is called() self.free is set True

Signed-off-by: rauldeve <rahul.e.dev@gmail.com>
added partial code for port mapping and other changes

Signed-off-by: rauldeve <rahul.e.dev@gmail.com>
added code for basic socket communication with php

Signed-off-by: rauldeve <rahul.e.dev@gmail.com>