Refactored xmlrpc:

- Made it possible to define xml-rpc methods on content. This made the
  "default view" mechanism unnecessary.

- Removed the default-view mechanism.  This is backward incompatable, 
  but it's better to do this now, rather than after X3.0.

This allowed the custom publication object to basically go away.

- Added documentation in the form of a doctest.

xmlrpc/configure.zcml

@@ -0,0 +1,16 @@
+<configure
+    xmlns="http://namespaces.zope.org/zope"
+    xmlns:xmlrpc="http://namespaces.zope.org/xmlrpc"
+    >
+
+  <!-- Translation Domain View Directives -->
+
+  <xmlrpc:view
+      for="zope.i18n.interfaces.ITranslationDomain"
+      permission="zope.ManageContent" 
+      methods="getAllLanguages getMessagesFor"
+      class=".methods.Methods" 
+      />
+
+
+</configure>