* replaceChild on document root should work, but it is implemented as
  an insertBefore + removeChild, and the insertBefore is not allowed
  for the document must have xactly _one_ child
* the code to dispatch the events is wrong, because it stores
  xmlNodes and not gdome wrappers, hence the nodes can be deleted
* when firing events, self is not always reffed, what is the reason for
  doing it?
* DOMSubtreeModified must have bubble=yes
* when setting more event listeners for the same node, with same type
  and same useCapture, the event listener also matters. It seems like
  now one can set only one event per combination type/capture
* /usr/lib is given by gdome-config
* should optimize event propagation, remember only those nodes with
  listeners