Updated to 1.7.2

I don't know if you're still working on this, or if real life hit you, so I decided to do this for you. And sorry for the spam of notifications you may have gotten from my multiple forkings. I was having problems, as you might have been able to tell. :P 

Added complete Gradle wrapper and chmod +x gradlew. Updated for 1.7.2. Networking code re-written, and Sounds commented out. Sounds have changed almost entirely, but has been made easier to use without utility class. Will go back and fix if need be. Also removed Nick stuff in prep for Mojang allowing name changing in 1.8. Will update MPS next, then do 1.7.10 update for both, unless you want something else.

Also removed old buildscript. It's all Gradle in 1.7.