Remove dependency on heat-jeos

heat-jeos is a convenience wrapper, and now we no longer need to inject files into the image (because heat-cfntools is in pypi), we can deprecate it and just call the underlying standard tools.

This should make things clearer to the user (visibility of the underlying calls, and not have to rely on something currently provided via a personal repo), and easier for us as we won't have to maintain the code anymore.

So e.g:

heat-jeos create U12-10-x86_64-cfntools --register-with-glance

will become (probably in a trivial shell script under tools?)

oz-install -d 3 U12.10-amd64-cfntools.tdl

oz-customize -d 3 U12.10-amd64-cfntools.tdl U12-10-x86_64-cfntoolsApr_22_2013-18:07:22

qemu-img convert -c -O qcow2 /var/lib/libvirt/images/U12-10-x86_64-cfntools.dsk /var/lib/libvirt/images/U12-10-x86_64-cfntools.qcow2

glance add name=U12-10-x86_64-cfntools is_public=true disk_format=qcow2 container_format=bare < /var/lib/libvirt/images/U12-10-x86_64-cfntools.qcow2

The main decision is where we put the example TDL files, since that seems to be the main purpose of the heat-jeos repo now, hosting the example templates