Updated mediawiki/extensions
Project: mediawiki/extensions/Echo  cbb0dd732d5fb90df2d44844303a157d4de2b890

Add UserMerge support

Depends on Id1726673 in UserMerge to allow specifying
a custom database object to use.

Bug: 67766
Change-Id: Iceb4b8d2fd53c50ed00a4aab9bc374f4bb716466