Replace redundant quasi-quoting
Remove some fugly REPL ns setup code

It's pretty much redundant now that we have cider-nrepl.
[Fix #613] Add clojure.test integration.

Add 'cider-test' to replace the venerable, now-retired 'clojure-test-mode'.
[Fix #8] Add code refreshing command

A simple command, which simply evals `clojure.tools.namespace.repl/refresh`.
Add timeout to sync requests

Sync requests are useful only for short running computations.
If no response is received in a few seconds it's a pretty safe bet
something blew up and the request is unlikely to ever yield a result
(freezing Emacs in the process).
Merge pull request #625 from jeffvalk/master

[Fix #613] Add clojure.test integration.