Add gitignore file to ignore class files.
Ignore all current class files.
Add class file bin directory to .gitignore file.
Pulled updates from Tetsuo.
Merge branch 'P2Working' of github.com:melombuki/CMSC335 into P2Working
Fix bug where cave was not added properly to JTree in GameTreeSurface class. Add fade of JProgressBar from red to green as a job completes in Job class.
Pull all updates from Tetsuo.