need kernel and initramfs data on maas.ubuntu.com

[Scott Moser]

We need kernel and initramfs data on maas.ubuntu.com in simplestreams format.

The plan is to provide this data for d-i installs on maas.ubuntu.com and eventually (ideally) get some similar data on a non-maas specific .ubuntu.com (possibly archive.ubuntu.com).

I have a tool that scrapes archive.ubuntu.com right now at
http://bazaar.launchpad.net/~smoser/maas/netinst2ss/files

essentially ,
  bzr branch lp:~smoser/maas/netinst2ss
  cd netinst2ss
  ./setup
  PYTHONPATH=$PWD ./netinst2ss

that creates out.d/ , which has content we want available on maas.ubuntu.com/images/installer

missing right now is that it doesn't create the index.json data or the signed.

The two things left to do:
 * think about how (if) ubuntu+1 is special or left out (ie, only in 'daily'). Not sure how to distinguish that.
 * need to sign and create index.sjson
 * need to scrape ports.ubuntu.com for arm.