Added some new networking code.

Framework in place for using netty thanks to Sirgingalot's tutorial.
Fixed up all network code with netty stuff.
Fixed up Battle System code.

Note that mod still does not compile yet as there is issues
with Minecraft having changed the sound and gui code.
Transition to 1.7.2 about complete.

Untested, doesn't run properly on latest forge due to what
I suspect to be a forge bug but it is beta.
Music has not been completed as Minecraft appears to have
changed the music code.
Fixed up confusion over the eventBus, many fixes.
Update README.md
Changed some output logs.
Update README.md