version 2.11 : maintenance release

* XML version: In order to validate the xml, the dtd is no longer loaded from the internet. It is included in the package.
* Bug 1579505 fixed: Tap 4.1 @EventListener and Tapestry JSCookMenu JavaModel didn't work together.
* Checked with Tap 4.1 : I had to deactivate serviceLink in the XML version because of incompatibilities between Tap40 and Tap41. If anybody uses serviceLink with XML-model, please tell me, and I will work on a solution.