Provide a means for the debugger to be run independently of nrepl or swank

[prismofeverything]

Right now I can only get ritz to work if I use nrepl or swank to connect, but it would be great to be able to use the debugger independently of one of these interfaces. It seems like all the pieces are there, but there is no straightforward way to set up the whole system to use the debugger in alternate ways.