Updated mediawiki/extensions
Project: mediawiki/extensions/Lingo  840546c6ba2a196f3ead6c4e53e57be3f906e727

Add qtip-shadow class

This allows that when switching to v2.2 (for SMW and be used by SG [0] ) the
shadows persists.

[0] https://github.com/SemanticMediaWiki/SemanticMediaWiki/pull/315

Change-Id: Ia002f2c0144d4d884f453b7351e954e8dcc1183b