Updated mediawiki/extensions
Project: mediawiki/extensions/BounceHandler  78b600da2cf98b96ce1c6495c640e8f4eeb0e48e

Made the VERP address generation optional

Now, the admin can chose whether or not to start producing VERP address
on send emails.

Change-Id: I0e62994bcfe709c8969379f3bea159c9b52d0dfb