Don't need to manually add chrome repo any more.
Ditch the annoying new scroll bar format.
Add traceroute, gnome-tweak-tool. Move myunity to gnome line.
Merge branch 'master' of git://github.com/convissor/ubuntu_laptop_installation

* 'master' of git://github.com/convissor/ubuntu_laptop_installation:
  Uncomment all origins so all upgrades get installed automatically.

Conflicts:
	setup.sh
Put UI tweaks and automatic updates in separate sections.
Kill the ready sound.
Move greeter changes to user interface tweaks section.
Clarify comment in ask_to_proceed.
Have root and admin user email alerts go to the regular user.
Adjust line wrapping.