wikipedia - wikipgedia: fix the remote code execution vulnerability

Log Message:
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fix the remote code execution vulnerability found in Mediawiki <= 1.5.3.
from the upstream project by way of Sven Klemm

Modified Files:
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wikipgedia/includes:
Setup.php (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/wikipedia/wikipgedia/includes/Setup.php.diff?r1=1.1.1.1&amp;r2=1.2)