Catch and log runtime exceptions when finishing a move-to request and

inform the client that the shit hit the fan so that it's not locked from
making any other move requests.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3703 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/whirled/zone/server/ZoneProvider.java

@@ -225,6 +225,10 @@ public class ZoneProvider
 
         } catch (InvocationException ie) {
             listener.requestFailed(ie.getMessage());
+
+        } catch (RuntimeException re) {
+            Log.logStackTrace(re);
+            listener.requestFailed(INTERNAL_ERROR);
         }
     }