Updated mediawiki/extensions
Project: mediawiki/extensions/BookManagerv2  554722c40731a1ba84dbe3ea2ec9b98995c6aa72

Bug 53164: Add variable to enable/disable navigtion bars.

This allows the extension to be configured such that navigation
bars are not added to any pages.

Bug: 53164
Change-Id: I0360314f9b77fe37916d72a642027c733f14fca3