Merge pull request #167 from lots0logs/testing

a few small fixes
Working on Gtk.Application and Gtk.ApplicationWindow. Not finished
More work on Gtk.Application
Try it does not work
Everything seems to work now.
Finally, we're using Gtk.Application and Gtk.ApplicationWindow
Moved update cnchi code to a new function
Added default pacman file (we use /tmp/pacman.conf). I added this because
this code pac.py is also used in cara
file name was wrong in comments
distro assurance
fixed a typo