Override :main ns for lein repl purposes

Fixes #47

README.md

@@ -23,7 +23,7 @@ exercises you've already completed.
 The only things you'll need to run the Clojure Koans are:
 
 - JRE 1.5 or higher
-- [clojure-1.5.0.jar](http://repo1.maven.org/maven2/org/clojure/clojure/1.5.0/clojure-1.5.0.zip)
+- [clojure-1.5.1.jar](http://repo1.maven.org/maven2/org/clojure/clojure/1.5.1/clojure-1.5.1.zip)
 
 You can use [Leiningen](http://github.com/technomancy/leiningen) to
 automatically install the Clojure jar in the right place. Leiningen will also

project.clj

@@ -1,8 +1,9 @@
-(defproject clojure-koans "0.4.9"
+(defproject clojure-koans "0.5.0-SNAPSHOT"
   :description "The Clojure koans."
-  :dependencies [[org.clojure/clojure "1.5.0"]
+  :dependencies [[org.clojure/clojure "1.5.1"]
                  [koan-engine "0.2.0"]]
   :dev-dependencies [[lein-koan "0.1.2"]]
   :profiles {:dev {:dependencies [[lein-koan "0.1.2"]]}}
+  :repl-options {:init-ns user}
   :plugins [[lein-koan "0.1.2"]]
   :main koan-engine.runner/exec)