dialog (better for choosing existing directories, and can still
create new folders).
Add optional title parameter for open dialog with ui_path_box_new()
and ui_setup_open_button_callback().
Use Windows folder dialog in ui_path_box_open_clicked().


git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@1526 ea778897-0a13-0410-b9d1-a72fbfd435f5