Checking in a "clean" version of the CCNx 0.7.1 distribution since the (soon to be checked in) skeleton for our app is configured in Eclipse to build against it (instead of having to manually copy over ccn.jar).
A skeleton for the "Registration" window is implemented and works.  It successfully launches a new window for each new chat entered (each in its own thread).
Update .gitignore files so building CCNx doesn't add a ton of temp stuff to the repo