Do not use the patch in org-agenda to call a function if it is provided as start-day because it is already possible to call a function.
Thanks Nick Dokos (id:25887.1361459055@alphaville)
Addition of an advice to push the mark before moving in nxml
REQ_NEW_WINDOW now opens a new uzbl instance instead of raising the event NEW_WINDOW.
The problem with NEW_WINDOW is that when the main one is quitted, the children are quitted too. That is not what I want.