Jam source code now on git.

I've migrated the java source code repository over to git. I've tested it by cloning it to a machine, running the build script, and running Jam. I hit a couple of hiccups, which resulted in one new check-in to the new git repository already.

I plan on migrating the VxWorks source code repository over to git soon.

I will probably delete the CVS repositories once I am satisfied that the Git repositories are both working.