Functional unit changes

Still working on it, but I needed to commit to sync
Merge remote-tracking branch 'origin/master'

Conflicts:
	TomasuloGUISkeleton/TomasuloGUISkeleton/src/tomasulogui/IntAlu.java

	TomasuloGUISkeleton/TomasuloGUISkeleton/src/tomasulogui/ReservationStation.java