Get rid of a silly "hasattr" for the cmdline.

Instead, pass it in, which is a much saner way to do
things.

Signed-off-by: Chris Lalancette <clalancette@gmail.com>
Cleanup the customize code.

This should be no functional change, but it makes the code
much easier to understand.

Signed-off-by: Chris Lalancette <clalancette@gmail.com>
Support url based installs for Ubuntu

Signed-off-by: Chris Lalancette <clalancette@gmail.com>