'Processes XML <dispatch> nodes into DispatchEntry objects.
The following information is parsed out:
url: The URL or URL pattern to route.
module: The module to route it to.
If there are no errors, the data is loaded into a DispatchEntry object
and added to a list. Upon error, a description of the error is added to
a list and the method terminates.
Args:
node: <dispatch> XML node in dos.xml.'

def ProcessDispatchNode(self, node):

    tag = xml_parser_utils.GetTag(node)
    if (tag != 'dispatch'):
        self.errors.append(('Unrecognized    node:    <%s>' % tag))
        return
    entry = DispatchEntry()
    entry.url = xml_parser_utils.GetChildNodeText(node, 'url')
    entry.module = xml_parser_utils.GetChildNodeText(node, 'module')
    validation = self._ValidateEntry(entry)
    if validation:
        self.errors.append(validation)
        return
    self.dispatch_entries.append(entry)
