Docs: Updated MariaDB to the new release version (10.0)

[OpenStack Infra]

https://review.openstack.org/178259
commit e50ce375ca3b5ae507f65e87eb06221ff474f26b
Author: Kevin Carter <email address hidden>
Date: Fri Sep 25 12:14:59 2015 -0500

    Updated MariaDB to the new release version (10.0)

    The change updates mariadb to use version 10.
    * The percona-xtrabackup repository was added
    * the custom mysql init script was removed in favor of allowing the
      packages to resolve its own init script
    * the install process was modified such that its faster while
      preserving the variable functionality already implemented.
    * The Galera cluster.cnf was modified to allow the user to define
      the wsrep method and a section for xtrabackup was added.
    * The galera_max_connections option will now appropriately set the
      max connection value such that any value used will be picked up
      by the running process.

    These changes enable us to leverage all of the new features and
    stability found within the updated version of MariaDB+Galera.

    DocImpact
    UpgradeImpact
    Implements: blueprint upgrade-mariadb-v10

    Change-Id: I2d773e569667e07106862507b881e3f0aca85591

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: liberty
Review: https://review.openstack.org/278486

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/278486
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=ff590acf2da943820dd7bc6d2de73c30c5266971
Submitter: Jenkins
Branch: liberty

commit ff590acf2da943820dd7bc6d2de73c30c5266971
Author: Major Hayden <email address hidden>
Date: Wed Feb 10 16:18:20 2016 -0600

    Docs/Reno: MariaDB 10.0 update

    Closes-bug: 1501427

    Change-Id: I84585e447219e57db94bcd9c7a8eb0faee743d94

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/openstack-ansible 12.0.11 release.