Fix for Limine Installer

Forum members don570 and Caramel reported an issue with Limine Installer:

https://forum.puppylinux.com/viewtopic.php?p=165226#p165226

Yes, the 'limine-installer' script launches the text editor from within a gtkdialog window, and the text editor has to also be terminated from within gtkdialog.

Have changed to using l3afpad instead of geany.   

Tags: easy