Merge pull request #87 from robszumski/master

Make logging doc title more clear
On qemu docs, pipe image directly to bzcat

Saves ~200MB of disk space, and one command-line instruction :)
(We could use `curl` to avoid the `-O -` parameter to `wget`, but I think it's a bit weird to use `wget` in one line and then `curl` on the next one)
Merge pull request #88 from riccieri/patch-1

On qemu docs, pipe image directly to bzcat
Updated Ubuntu PXE setup link

Old one was from 2010. The new one is from 2013 and is more comprehensive.
Merge pull request #89 from brianclements/patch-1

Updated Ubuntu PXE setup link
feat(rackspace): add note about supported flavors