Filetransfer tests fix: Increase interval for waiting event(when last test failed the event was received 100ms after we stopped waiting).

test/net/java/sip/communicator/slick/protocol/generic/TestOperationSetFileTransfer.java

@@ -694,7 +694,7 @@ public void testSenderCancelsWhileTransfering()
                          ,fileTransferCreatedEvent.getFileTransfer().getLocalFile()
                          ,receiveFile);
 
-            receiverStatusListener.waitForEvent(8000, 3);
+            receiverStatusListener.waitForEvent(12000, 3);
             assertTrue("Cancel event must be received",
                 receiverStatusListener.contains(FileTransferStatusChangeEvent.CANCELED));
         }