Deprecates MySQL parameters in favor of MariaDB

Fixes: rhbz#1102486
(cherry picked from commit dc9902f4873e46d7a33df2dcc3dc139ecd883168)

Conflicts:
	packstack/puppet/templates/mariadb_install.pp

Change-Id: I1f9775eeef6312389316c181897ad459b0cd44f7