Removed printlns
reCalc output on input change
Renamed observable to inputs in diagram model

Conflicts:
	src/org/rxtudelft/marbleui/diagram/MarbleDiagramModel.java
Getters for diagram model
draw line of observable in the middle
Create inputs based on diagram
Add clear method to observable model
Obs model observable has change events
Generated EQ method for simpleMarbleModel
Rename local var
Diagram watches right model
Commented test scheduler tryout
Complete after creating obs in obs model
Note rename InitOperator
Attach output to view model
Remove marble on removal
Initiate output model in diagram
Commented calcOutput && using timestamp operator
Refixed infinite size observable bug
Hide ghost when out of bounds