Switch to HTTPKit.
Try and figure out websocket nREPL transport. WIP.

Doesn't actually do anything.
Get something sort of working.

Only works for clone message, throws StackOverflowException for an
evaluation.
One handler per process.
Merge branch 'develop' into feature/websockets

Conflicts:
	gorilla_repl.iml
Take a different tack, seems to work.

Needs quite a bit of cleanup work though. WIP.
Working websocket transport. Fixes #10, fixes #31.
Merge branch 'develop' into feature/websockets