virtualbox: allow destroy if the VM is gone already
Prevent restore from failing when choosing to keep volume around.
Make show-physical --backup consistent for pvgrub and hvm instances.
Fix release date.
route53: match zones with less components in it

allows to match zone 'example.com.' for a hostname 'service.staging.example.com'
if there's no hosted zone called 'staging.example.com.'
Merge pull request #180 from proger/route53-hostedzone-submatch

route53: match zones with less components in it
Merge pull request #179 from proger/virtualbox-destroy-even-if-gone

virtualbox: allow destroy if the VM is gone already
More release notes.
backends: Check units with systemctl --no-legend.

If legend is enabled, the unit names are indented by two spaces in
systemd 212. But if used with --no-legend we not only get something that
resembles the old behaviour, we also can be sure that we don't match
anything in the legend and/or additional descriptions around the actual
content.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Merge pull request #181 from aszlig/systemd-212-fix

backends: Check units with systemctl --no-legend.
Fix release date, today is the day...
Amazon EC2 r3 instances are HVM instances as well.
Allow traffic on port 80 of httpd example in manual.
Add work-around for weird DescribeKeyPairs behaviour in EC2.