OpenEuphoria

I have posted an updated ui_gtk.e and accompanying icon include file to http://sites.google.com/site/euphoriagtk/Home

This implements the choice of interpreter and terminal to use, as well as cleaning up some of my messy code. Should just drop in in place of the existing ui_gtk.e. Let me know if there are any problems.

I didn't even attempt to add the same features to the Windows version (sorry). I am sure I would mess things up there. Someone with more Windows experience will need to do that.

I think this shows how well Pete separated the interface(s) from the rest of the editor code, so that I could add things without needing to mess with stuff that I don't have any business messing with :) It's a good lesson for other cross-platform apps.