rkneufeld/lein-try — pull request #6 by seancorfield (2013-07-15 16:07:42+00:00)
Title: Fallback to Leiningen 2.1.3 if starting REPL fails

This may not be the most discriminating way to determine Leiningen 2.2.0 vs 2.1.3 but at least catching the exception and attempting to start the REPL with the old API seems to work on 2.1.3 and should continue to work on 2.2.0.