Introduce TestsFailedException
Throw TestsFailedException when tests fail
Do not print stacktrace for TestsFailedException
using recent version of clojurescript
Change the version uniformly to 0.3.1.
Merge remote-tracking branch 'hsalokor/master' into 0.3.1
Reformat things consistently with surrounding code.
Merge remote-tracking branch 'hsalokor/topic/suppress_stacktrace_on_test_failure' into 0.3.1

Conflicts:
	plugin/src/leiningen/cljsbuild.clj
Add a couple new contributors to the README.
Remove a workaround for CLJS-418.  Closes #164.
Update the README for the requirement of lein 2.1.2.
Use Clojure version 1.5.1 everywhere.
Update the release notes for 0.3.1.
Add convenience docs for :output-wrapper.
Oops, add a period.