Revision 545437

Bug 42050 - proxying does not work. 
Adding proxyTransformer that is doing the proxy rewritte as last step of the transformation for html documents.
Adding chaperon pattern resolver and using it for css proxing. Can scan any file for pattern and transform them to links, see the way I implemented in css to extend it to e.g. js.
Extending PublicationConfiguration.java and publication.rng to read and allow the new attributes in the proxies element.