Old error had added the list and the search at the same place of the
popup, leading to strange interactions as the search view is floated
to the right: in Firefox the search view would be hidden behind the
list (completely), in Chrome the search view would be visible but
"overlaid" with a transparent section of the list, and (tentative)
clicks on the search view would have no effect as they'd actually be
done on and in the list view.
bzr revid: xmo@openerp.com-20121019110804-3kg91rro91isp771