Complete moving Keystone setup out of keystone_data.sh

* Move remaining role creation to create_keystone_accounts()
* Move glance creation to create_glance_accounts()
* Move nova/ec2/s3 creation to create_nova_accounts()
* Move ceilometer creation to create_ceilometer_accounts()
* Move tempest creation to create_tempest_accounts()
* Convert moved code to use OpenStackClient for setup
* files/keystone_data.sh is removed

Note that the SERVICE_TENANT and ADMIN_ROLE lookups in the other service
implementations are not necessary with OSC, all operations can be done
using names rather than requiring IDs.

Change-Id: I4283ca0036ae39fd44ed2eed834b69d78e4f8257
Setup the correct ec2 manifest path

setup correctly the path to the ec2 boundled images.

Change-Id: If3bce845e009a73c6b685976de3fa6d44b907bed
Clean /etc/mysql when calling clean.sh

The clean.sh script should also remove the /etc/mysql
directory. It contains information from the old
devstack installation and may conflict with the further
one. apt-get purge does not remove it since the
directory is not empty.

Change-Id: I885345a2311851d8746abe42e44300ecd4f6e08a
Set correct default disk bus back to virtio on ppc64

virtio is supported and should be the default disk bus on Power to
take advantage of I/O performance drivers. This aligns with Nova
default bus values on PowerKVM. SCSI is the default for cdrom.

Change-Id: I5de08c90359b3a500c352c09c07b6b082ddb4325
Devstack changes to ceilometer to support vsphere

Ceilometer currently supports only libvirt when installed
using devstack. Have extended this support to Vmware Vsphere in this changelist.

Change-Id: I98c64204973bca5e6a7f859a5431adb2b661277f
Remove TEMPEST+=,savanna

Tempest tests integration has been updated.

Change-Id: I6e56f00b99252d145ee0684d3d9705dee768da3e
Merge "Devstack changes to ceilometer to support vsphere"
Merge "Clean /etc/mysql when calling clean.sh"
Merge "Setup the correct ec2 manifest path"
Merge "Set correct default disk bus back to virtio on ppc64"
Merge "Remove TEMPEST+=,savanna"
Merge "Complete moving Keystone setup out of keystone_data.sh"
Merge branch 'master' of https://github.com/openstack-dev/devstack