Add distcc

Install distcc to support remote builds from the laptop
Automate the process of changing a minor config option
Disable USB Printing (see details below)

When using CUPS there are two methods for interacting with USB printers:

  1) Directly through the kernel (CONFIG_USB_PRINTER)
  2) libusb + (optionaly) any vendor specific drivers

1) is the old method which (according to the arch wiki) works well for
   basic printing operations.
2) Is more flexible and is supposed to work better for printers that do
   more then just basic printing.

Currently there are no printeres connected to this maching, but the
config option has been turned off in response to the following error
notice from CUPS:

    * Your usb printers will be managed via libusb. In this case,
    * cups-1.7.1 requires the USB_PRINTER support disabled.
    * Please disable it:
    *     CONFIG_USB_PRINTER=n
    * in /usr/src/linux/.config or
    *     Device Drivers --->
    *         USB support  --->
    *             [ ] USB Printer support
    * Alternatively, just disable the usb useflag for cups (your printer will still work).