Implement hashCode() sensibly.

git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@857 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/cast/CharacterComponent.java

@@ -106,6 +106,12 @@ public class CharacterComponent implements Serializable
         }
     }
 
+    @Override
+    public int hashCode ()
+    {
+    	return componentId;
+    }
+
     @Override
     public String toString ()
     {