Updated mediawiki/extensions
Project: mediawiki/extensions/intersection  1a507c819ba5f1eb649bcecd077d86b9bbd0f715

provide default entry point

Lot of our tools are expecting a default entry point based on the
extension name.  This patch provide a symbolic link as an entry point.

Change-Id: I61d90bc77b0dbf8d728e83ec4caeda708399799e
(cherry picked from commit b8409514a85b2e7f763447accbf57f7ba9dd621e)