Better use of arrays
Merge branch 'master' of github.com:RxTUDelft/MarbleUI

Conflicts:
	src/org/rxtudelft/marbleui/MarbleUI.java
	src/org/rxtudelft/marbleui/NodeObservable.java
Trying out how to use the TestScheduler for marble diagrams. Using onNext(value, timeInMilliseconds) to schedule the marbles the user input, using TestScheduler.now within the subscription of the resulting observable to get the time of the resulting marbles :)