postgresql: add fix for CVE-2014-0060 Security Advisory

PostgreSQL before 8.4.20, 9.0.x before 9.0.16, 9.1.x before 9.1.12,
9.2.x before 9.2.7, and 9.3.x before 9.3.3 does not properly enforce the
ADMIN OPTION restriction, which allows remote authenticated members of a
role to add or remove arbitrary users to that role by calling the SET
ROLE command before the associated GRANT command.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-0060



Signed-off-by: Yue Tao <Yue.Tao@windriver.com>
Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>