Remove redundant arping package from apts/nova

Nova is dependent on arping because 'arping -U' is used.
Arping package doesn't provide 'arping -U'. Let iputils-arping
do the arping job.

Change-Id: Iad4cbf823881de4656fb6a4e32285cf2a49b1d2a
Add configurable use of veths with Quantum+OVS.

 * This patch adds the ability to configure use of veths with
   OVS via the Q_OVS_USE_VETH variable.  The use of veths with OVS
   is required to support namespaces on RHEL.
 * Supports bug 1171727

Change-Id: I5f557d659684ead99a3e5e2b4df787699d9d3f05
Merge "Remove redundant arping package from apts/nova"
Merge "Add configurable use of veths with Quantum+OVS."
Pre-install hgtools for RHEL6

See the inline comment; pre-installing this package works around [1]

[1] https://bugzilla.redhat.com/show_bug.cgi?id=924038

Change-Id: Id021b44ac9d8aa28286828ccfd6515b7850bad16
Ensure correct polkit config written for RHEL6

Ensure the correct polkit config is written for RHEL6, or nova-cpu
will fail to start with libvirt permission errors

Change-Id: I871ef4e03157883db15be41222b7338765fbb843
Add saucy support

Add support for "Saucy Salamander"

Change-Id: Ic7dfef2903634b17304243917fa3d8389a93b0c0
Signed-off-by: Chuck Short <chuck.short@canonical.com>
Merge "Pre-install hgtools for RHEL6"
Merge "Ensure correct polkit config written for RHEL6"
xenapi - cleanup

Add error on unitialised variable to the scripts. This way some issues
were identified. Also modify README with fresh variables. The patch
includes:
 - Add SWIFT_HASH to the README
 - Add XENAPI_CONNECTION_URL to the README
 - Add VNCSERVER_PROXYCLIENT_ADDRESS to the README
 - Introduce UBUNTU_INST_IFACE which is the OpenStack VM interface used
   for the netinstall. It defaults to eth2. Previously this parameter
   was set by the combination of HOST_IP_IFACE (which defaults to eth3)
   and the undocumented NETINSTALL_IP
 - xenrc inscludes CLEAN_TEMPLATES
 - xenrc no longer tries to change directory
 - prepare_guest.sh - cleanup non-used chroots, parameters
 - prepare_guest.sh is using arguments instead of env vars

Related to blueprint xenapi-devstack-cleanup

Change-Id: Ie9a75321c7f41cc9a0cc051398d1e6ec2c88adfa