Handle failure properly now that shutdown tries to finish up.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5307 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/client/BlockingCommunicator.java

@@ -709,10 +709,8 @@ public class BlockingCommunicator extends Communicator
                 sendMessage(msg);
 
             } catch (IOException ioe) {
-                // let the communicator know if we have any problems
-                connectionFailed(ioe);
-                // and bail
-                shutdown();
+                connectionFailed(ioe); // let the communicator know
+                super.shutdown(); // and bail immediately (which is why we call super)
             }
         }