Not sure why these hoops felt necessary at the time, but they're not now

script/run.clj

@@ -1,4 +1,2 @@
-(load "koan_engine/runner")
+(require 'koan-engine.runner)
-(do
+(koan-engine.runner/exec "run")
-  (in-ns 'koan-engine.runner)
-  (exec "run"))

script/test.clj

@@ -1,4 +1,2 @@
-(load "koan_engine/runner")
+(require 'koan-engine.runner)
-(do
+(koan-engine.runner/exec "test")
-  (in-ns 'koan-engine.runner)
-  (exec "test"))