Merge pull request #269 from vuntz/nf-on-bridges

Enable netfilter on bridges
fix PowerEdeg typo
Merge pull request #272 from aspiers/poweredge-typo

fix PowerEdeg typo
Add virtual_ip_assigned? to service object

This can be used to know if a VIP is already assigned; this information
can then be used to avoid triggering a DNS update for the VIP.

(cherry picked from commit 387e26cbaadfc30daab6015063c2110deddc963a)
Merge pull request #277 from vuntz/vip_assigned

Add virtual_ip_assigned? to service object
Moved role constraints into model and removed edit deployment

(cherry picked from commit 17a1122a06dca6d2cb9fc1b16934f906bfb0fdfd)
Merge pull request #278 from vuntz/release/roxy/master

Moved role constraints into model and removed edit deployment
Removed the single assignment block from constraints
Merge pull request #279 from tboerger/feature/roxy/fix-constraints

Removed the single assignment block from constraints
improve logging of network operations

We're not necessarily waiting "for the net to come back", because
we may not have changed anything in the network config.  But if
we have, then we should explicitly log it.
Merge pull request #281 from aspiers/better-logs

improve logging of network operations
Unbreak install-chef(-suse).sh

"provisioner" might be nil. As during installation the admin node does not have
the provisioner-server role assigned (yet) when the network recipe is executed.
Merge pull request #282 from rhafer/unbreak-install

Unbreak install-chef(-suse).sh
Merge branch 'release/roxy/master' into roxy-sync
Merge pull request #283 from vuntz/roxy-sync

Merge roxy branch into stoney