Deleted version.clj, which did not work anyway.

src/mw_engine/version.clj

@@ -1,18 +0,0 @@
-(ns ^{:doc "package documentation."
-       :author "Simon Brooke"}
-  mw-engine.version
-  (:gen-class))
-
-(defn get-implementation-version
-  "Get the implementation version from the package of this namespace, which must
-   be compiled into a class (see clojure.java.interop). See
-   http://stackoverflow.com/questions/12599889/how-to-get-runtime-access-to-version-number-of-a-running-clojure-application
-   TODO: doesn't work yet."
-  []
-  (try
-    (.getImplementationVersion (.getPackage (eval 'mw-engine.version)))
-    (catch Exception any "Unknown")
-    ))
-
-(defn -main []
-  (get-implementation-version ))