Force "use_vlan" to false on nova_fixed when using vlan modes

When ovs is used in vlan-mode quantums sets up an ovs-bridge to do the vlan
tagging. That bridge needs be attached to a none VLAN interface in order to
work correctly.

When linux-bridge is used quantum's linux bridge agent will create the correct
vlan interfaces automatically.
Add support for using the quantum cisco plugin
Add condition to ceilometer notifier in nova.conf
Ceilometer notifier will be added only if ceilometer is installed
Merge pull request #217 from rhafer/fix/ovs-vlan

https://github.com/crowbar/barclamp-nova/pull/217

Merged by devtool for ArkadyKanevsky
Update Hyper-V Barclamp to Python 2.7.5 and local Python environment

Updated the Hyper-V Barclamp to use Python 2.7.5 and extract all Python modules from a local archive, with no need for internet connection.
Fixed pyopenssl dependency issue for SUSE Cloud 2.0
Merge pull request #223 from rhafer/fix/cisco-support

https://github.com/crowbar/barclamp-nova/pull/223

Merged by devtool for ArkadyKanevsky
Merge pull request #226 from MirantisDellCrowbar/DCB-158/pebbles/master

Add condition to ceilometer notifier in nova.conf
Create and redistribute ssh keys for Nova user

The nova non-life migration feature requires to be able
to ssh from nova@ to other nova@ users on other compute nodes.
Setup the ssh keys properly for that.
Merge pull request #233 from ociuhandu/patch-1

+2, only impacts HyperV - accepting w/o smoke
Merge pull request #216 from dirkmueller/ssh_migrate

Add support for offline-migration