Enable VisualEditor on board, collab, office and wikimaniateam wikis

Also add the necesary wmgVisualEditorParsoidForwardCookies setting.

Change-Id: Ib00795c6a6168e0d328e13feafeed1a7db1848f3
Merge "Enable VisualEditor on board, collab, office and wikimaniateam wikis"