Update the list of editors/clients

Release 0.4.3

Release 0.4.2

Release 0.4.1

Release 0.4.0

Release 0.3.1

ns clean up

Went through all the ns declarations and tried to follow the
recommended best practices for ns requires, imports...

[maven-release-plugin] copy for tag nrepl-0.2.13-RC1

project moved to clojure-contrib @ http://github.com/clojure/tools.nrepl