TTimo/GtkRadiant — pull request #89 by RavuAlHemio (2012-07-16 22:48:35+00:00)
Title: port directory choosing to GtkFileChooserDialog

I think it's time to retire GtkFileSelection -- GtkFileChooserDialog has been introduced way back in Gtk 2.4 and the file-choosing infrastructure has already been ported to it.

This single-commit pull request ports the directory-choosing infrastructure as well.