Updated mediawiki/extensions
Project: mediawiki/extensions/MassMessage  77e3fc9b06f2b399d8e9c4e2e93721c904ae0a01

Added tabindex to MassMessage form elements

When tabbing through the form, the Copyright text comes between the
subject box and buttons. Hence tabindex is set to solve the same.

Bug: 60726
Change-Id: I73bbe799f61497c0c6bf4dd9d4798ed07ab39e85