color: Remove the virtual device functionality as it's unused

Nobody uses this, and real power users are using the D-Bus API or the command
line already.
info: Remove obsolete Graphics section

https://bugzilla.gnome.org/show_bug.cgi?id=691242
shell: Fittsify panels

Make it possible for panels to go all the way to the edge of the
shell. This is particularly important for panels that scroll, such
as the new power panel. All other panels are changed to compensate
for the loss of external padding.

https://bugzilla.gnome.org/show_bug.cgi?id=691229
background: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
bluetooth: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
color: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
datetime: use a GResource for GtkBuilder UI definition and icons

https://bugzilla.gnome.org/show_bug.cgi?id=691132
display: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
info: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
keyboard: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
mouse: use a GResource for GtkBuilder UI definition and icons

https://bugzilla.gnome.org/show_bug.cgi?id=691132
network: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
notifications: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
online-accounts: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
printers: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
privacy: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
region: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
screen: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
search: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132
universal-access: use a GResource for GtkBuilder UI definition

https://bugzilla.gnome.org/show_bug.cgi?id=691132