Merge pull request #19 from JamieWohletz/Develop

Changed KEY and LEVEL back to lowercase
Updating javadocs comments to match those in the supplied javadoc file from the assignment
Updating a couple javadocs items here for Test and the interface
Update Thing42Test.java

Adding tests
Adding suppress warning and strong type for Iterator
Resolving merge conflicts
Added CheckStyle changes
Merge pull request #20 from ankenmanp/equalsExperiment

Updating javadocs comments to match those in the supplied javadoc file f...
Added docs for test