Update baremetal to work with the latest DIB

Adjust DevStack to the current DIB's naming to kernel/ramdisk.

BM_HOST_CURRENT_KERNEL is removed since the kernel is extracted from
a diskimage with the ramdisk and the host's kernel is not used.

BM_BUILD_DEPLOY_RAMDISK is added to control whether use DIB or not.

If you set BM_BUILD_DEPLOY_RAMDISK=False, you must BM_DEPLOY_KERNEL
and BM_DEPLOY_RAMDISK to point existing deploy kernel/ramdisk.

Fixes bug 1207719

Change-Id: I62af0b1942b07ac12665c0ed3619d64c1cccbe1f
Correctly setup ML2 mechanism_drivers

The ML2 code in devstack was not correctly configuring the mechanism_drivers
when asked to do so. This corrects the typo in the variable assignment, and
also actually sets these in the plugin configuration file.

Fixes bug 1208557

Change-Id: I3746ca099f45d44dcf1cc2ca1c3726745b8e8a1d
Add keystoneclient support for cinder.

Add an ability to ask keystone about users and groups
through keystoneclient in cinder.

blueprint volume-acl

Change-Id: Ice261e9709833d057722b4f13c404df54e10b204
Show ip address before associating address

In order to see is the instance has a fixed ip at the moment.

Change-Id: I506f2f099a03e8b63f1f2daeb564ed72f1322a68
Don't uninstall packages when on xenserver

It turns out our fix for package madness breaks when running on
xenserver. Put in a simple exclusion for that case until we figure out a
more total and systemic solution to everyone's problems.

Change-Id: I491917015337f83206937c53949a62aa63f4679f
Merge "Don't uninstall packages when on xenserver"
Merge "Show ip address before associating address"
Merge "Add keystoneclient support for cinder."
Merge "Update baremetal to work with the latest DIB"
Merge "Correctly setup ML2 mechanism_drivers"
Merge branch 'install-pip' into dt-test