Work around $wgConf's uselessness
Work around $wgConf's uselessness

WikiMap is almost useful for this purpose, but not quite
because it doesn't provide the script path, only the article path.

Change-Id: I1627d58cab5ff518be3c3e14e05a53899b083503

wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo