Comment 13 for bug 1206444

Reviewed: https://review.openstack.org/40165
Committed: http://github.com/stackforge/puppet-heat/commit/e9e261be3bbff99ae95786e9b2089712bfc03eb4
Submitter: Jenkins
Branch: master

commit e9e261be3bbff99ae95786e9b2089712bfc03eb4
Author: Xingchao Yu <email address hidden>
Date: Sun Aug 4 17:57:42 2013 +0800

    Update allowed_hosts conditional statement

    In the origin heat::db::mysql, if the value of $allowed_hosts
    contains or equals to $host, then puppet will complain duplicate
    declaration error. This patch is aim to update the allowed_hosts
    conditonal statement in heat::db::mysql.

    There are two cases to pass $allowed_hosts to $real_allowed_hosts:

       - If $allowed_hosts is array,then remove $host from $allowed_hosts;
       - elsif $allowed_hosts is string and not equivalent to $host;

    At last, if $real_allowed_hosts is not undef, then run
    heat::db::mysql::host_access

    Add heat_db_mysql_spec for related test.

    Fix bug 1206444

    Change-Id: Iac6a32fb614c9ad19f9eaa3aaa883cb3bf9aa2ef