A FIX FOR OUR CRAZY FAILNODE FAILURES.  MAYBE.
Merge branch 'master' of github.com:djmailhot/CSE-Distributed-Systems

Conflicts:
	proj/MCCNode.java
Merge branch 'master' of github.com:djmailhot/CSE-Distributed-Systems
MMCNode now checks early if recieved transaction has already been committed