Updated mediawiki/extensions
Project: mediawiki/extensions/Echo  724470ce021394636482feef64712e506997345e

Remove static object cache to avoid cross wiki related issue

Some script like job runners are running against multiple wikis, caching the object would make later wikis use the incorrect object, it's global variable anyway, there is no need to cache it

Change-Id: I427a5cefbd607aaf897dfa07087e381faffea495