Grun, first public release

Grun stands for "Gui Run'ner". It's a python module which is able to turn methods into GUI forms, with a simple decorator. It brings some nifty things to make your script "bling-bling" too (messagebox, prompt, progressbar, popup menu, icon app, config backend ...).

In fact, it's a swiss-knife for making simple frontends for python scripts. It works on all platforms using tkinter, and can use pygtk when available.

It's the first public release, so it should contain bugs. I will try to make it "rock solid", and will release a python3 version too.