Updated mediawiki/extensions
Project: mediawiki/extensions/ZeroRatedMobileAccess  676a2d5e0c4267b8b832ec7b8236cc33dbd0f0b1

Remove 2% sampling for X-CS=502-16.

* Related to bug 56119.
* It turns out that every UA in the sample contained "Opera".
* When change 88621 is approved, X-Forwarded-By can be used instead.

Change-Id: I3f233f0f4ac7a0d5ea08f415105340a579b3bc24