add xbmc
update based on notes by @dnschneid
Don't pull non-existent updates from sid, since this causes the chroot prep to fail.
Merge pull request #223 from agriffis/no_sid_updates

Don't add sid-updates to sources.list; it doesn't exist
Merge branch 'master' of git://github.com/phated/crouton
Update xbmc target to croagh framework
Make plugdev's gid reflect usb's gid, and add new users to plugdev.

Fixes #171, although existing chroots will need to manually add their user to
plugdev via `sudo adduser $USER plugdev`
Update the main user's groups when updating a chroot.
Fix error when unable to find tarball for restoration.
Use xbindkeys instead of keylaunch: More flexibility for bindings.
Add brightness control.
Map Alt+click to middle button (paste): useful for terminal.
Remove Alt+click binding. Instead, source ~/.xbindkeysrc.scm.
+ minor cleanups
typo correction (revealed upon mounting encrypted chroot with external key)

revealed upon mounting encrypted chroot with external key
Merge pull request #233 from dimonf/patch-1

Fix entering chroot with key files.
Merge branch 'xbindkeys' of git://github.com/drinkcat/chroagh
Add comment to crouton xbindkeysrc.scm
Update X11 switch tip.
call gnome-session correctly to start unity

Fix the startunity script to launch gnome-session.

This will fix many of the various bugs caused by gnome-session
not existing during a unity session.

gnome-session requires the DESKTOP_SESSION environment variable
to be set to launch properly. This script should also now be 
adaptable to work with gnome-shell and cinnamon.

Fixes #6
Install unity dependencies on quantal+

Adds gnome-session, ubuntu-settings, ubuntu-artwork, and nautilus
to the Unity target. Removes light-themes, which falls under
ubuntu artwork.