xenapi: enable block device access for stack user

Although nova is setting the permissions on block devices, sometimes it
fails, and that results in an instance failing to launch. It is only an
issue for 3-part images, and images accessed through block devices. This
patch adds an udev rule, so that devices will be accessible.

fixes bug 1218251

Change-Id: I837ea515457fbfc50e9ce138ea9de9db12baa8be
Fix Neutron issues related to Baremetal service

When deploying devstack on a single host with a single NIC and
baremetal and neutron services enabled, the host looses Internet
access as default route is deleted.

Also, if localrc is not correctly set with correct values, OVS ports
and Neutron net and subnet aren't created (commands missing
arguments), we need devstack to properly fail.

Change-Id: I7f39bbdf7b8cb544b8b4a59effe16f04b85d1425
Support OpenSwan in Neturon VPNaaS

Neutron VPNaaS chagned ipsec package for
OpenSwan. This commit updates the package.

Change-Id: I333501a405fbc552c575d26cfbac083646d05dfd
Rename ceilometer alarm service name

Rename service name "ceilometer-alarm-eval" to
"ceilometer-alarm-singleton" and "ceilometer-alarm-notify" to
ceilometer-alarm-notifier" in this patch.

Change-Id: I6619cc02874f6f59c43ba2952325e9d0533e395d
Merge "xenapi: enable block device access for stack user"
Switch Ceilometer default backend to MySQL

MongoDB 2.4 not being available in Ubuntu cloud archive for a while now,
and the catch up done by this driver allows me to think it might be a
good idea to switch by default on SQL for now on devstack.

We can add another job to have Ceilometer tested on MongoDB too later.

Change-Id: I74c3c436d009fed898c5ae4ffb82763e9a337d90
Fix Heat's signing_dir

This is not critical but looks odd using api-cfn.

Change-Id: Ie0f5c66f635b4a7c6ba51581ad01bab624158e61
Use 1.4.1 of pip.

- This is where the option pip install --pre is.

Change-Id: I3f836a701f17a4fea888ec51da62e7137cf0e6db
Merge "Use 1.4.1 of pip."
Merge "Rename ceilometer alarm service name"
Merge "Support OpenSwan in Neturon VPNaaS"
Merge "Fix Neutron issues related to Baremetal service"
Merge branch 'master' of github.com:openstack-dev/devstack