postgresql: add fix for CVE-2014-0061 Security Advisory

The validator functions for the procedural languages (PLs) in 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 allow remote authenticated users to gain
privileges via a function that is (1) defined in another language or (2)
not allowed to be directly called by the user due to permissions.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-0061



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>