The URL box in the "Open Network Stream" dialog has now always focus
when opened and its content is automatically selected.
The patch is for ticket #4361 and was created as a part of a GCI-task
(http://www.google-melange.com/gci/task/show/google/gci2010/videolan/t129200306101).
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>