Made Outcome public.

#52

Author: nmcl

src/main/java/org/javasim/Semaphore.java

@@ -39,7 +39,7 @@ public class Semaphore
      * could be returned.
      */
 
-    enum Outcome { DONE, NOTDONE, WOULD_BLOCK };
+    public enum Outcome { DONE, NOTDONE, WOULD_BLOCK };
 
     /**
      * Create a new mutex (resources = 1).