Cleanup, got things working well
Revised most of project.  Getting things to work smoother and cleaner now.  Lots of  test coverage.
Merge branch 'fixes'

Conflicts:
	src/printsim/Clock.java
	src/printsim/ClockEvent.java
	src/printsim/Job.java
	src/printsim/Printer.java
	src/printsim/Queue.java
	src/printsim/SimDriver.java
	src/testing/JobTest.java