Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  a64ad32b4930feb695a978e35f4069728f40a979

Hygiene: Refactor wikiGrokCampaigns code

* Remove unused $
* Move campaign.suggestions code to WikiGrokDialogB
* Update documentation and tests

Change-Id: I0d09e8637b0f0815c261edb72233ae0aa86ad310