Put tests directory onto classpath
Put tests directory onto classpath

Fix #23

"test" directory can be in :source-paths because they do not end up in
resulting jars like :resource-paths do.

`(test-all)` now works after first doing a `(reset)` (or more specifically
doing a repl/refresh)

armincerf/clojure-app-test,armincerf/clojure-app-test,juxt/edge,juxt/edge