Real Commit 2 - A lot of tweaking to GasChamber and Element and a few minor changes to GaseousDiffusion to adjust for the other changes I made.  Added JUnit 4 classes GasChamberTest and ElementTest.
Real Commit 2 - A lot of tweaking to GasChamber and Element and a few minor changes to GaseousDiffusion to adjust for the other changes I made.  Added JUnit 4 classes GasChamberTest and ElementTest.