Collapse all runtime JARs into single classpath reference
Remove commented-out code
Fix network test

The network test was horribly outdated and needed a few changes to make
it work properly again. I actually believe it may have been broken in
0b7553a; setting up a ServerListener _may_ actually be the right way to
test the code. For now, though, I'll keep this as-is and maybe fine-tune
it down the road.