Add the nova-multi-compute-xen role
Only accept xen role for SUSE nodes

At least, people running non-SUSE will know it won't work.
Fix error string
Merge pull request #292 from vuntz/add-xen

Add the xen role
Ceph support for Nova
 - Integration with new barclamp-ceph
Merge pull request #261 from mjura/release/roxy/ceph-support

Ceph support for Nova / roxy branch
Add support for vmwareapi.VMwareVCDriver
Merge pull request #260 from mjura/release/roxy/vmware-support

VMware vCenter support for roxy branch
Remove support for nova-network
Remove unused variable
Add migration script for nova-network removal
Add role constraints for xen role
Merge pull request #294 from vuntz/fix-xen

Add role constraints for xen role
Merge pull request #289 from vuntz/no-nova-network

Kill nova-network support
Completely drop network recipe

Everything it does should really be done by neutron.
Improve some strings
webui: Reorder live migration settings
Merge pull request #295 from vuntz/no-network-recipe

Completely drop network recipe
Merge pull request #296 from vuntz/tweak-ui

Trivial change, merging
Drop unused cookbook_file for nova-common

It was never run, so it's not really needed.