Updated mediawiki/extensions
Project: mediawiki/extensions/VisualEditor  23dd5f9fb9b5b6d845fce8e223eae3a963f75cfa

'Config' -> 'Configuration' in all comments

Because the former isn't a real word.

Change-Id: Ie6ed15f9e390b357bbaa768b57f3c3fd7cf21181