Extend default swift-proxy configuration for Tempest

We are enabling swift middlewares: bulk, catch_errors, ratelimit,
account_quotas, container_quotas, formpost and slo.
Closes-bug: rhbz#1023221

Change-Id: I7474a703601cc06e2de13b1360d377c4b9aefc30
Update to Move libvirt options into a group

Nova has moved the the libvirt options into a group
in the config file, this patch aligns packstack templates
to this new configuration.
This patch needs this pull request to be approved first:
https://github.com/redhat-openstack/openstack-puppet-modules/pull/37

Change-Id: I14027588dd10e8e13af356ec53a9958f49039fb1
Fixes: rhbz#1093925
Add performance configuration for InnoDB

Added following setting to my.cnf/server.cnf
innodb_buffer_pool_size = 20% of available memory
innodb_flush_method = O_DIRECT
innodb_file_per_table = 1

Change-Id: I392720b3dff860ec1e1416657d7517e7a7041849
Fixes: rhbz#1078999
Merge "Extend default swift-proxy configuration for Tempest"
Merge "Add performance configuration for InnoDB"
Merge "Update to Move libvirt options into a group"