ADEN-4 Use classes autoloader for AdServer
ADEN-4 Mark AdServer file for removal

Conflicts:
	skins/wikia/WikiaMonoBook.php
ADEN-5 Spotlights sanitized
ADEN-4 ADEN-5 Fix for Monobook
ADEN-4 ADEN-5 Spotlights show/hide logic reversed
Merge pull request #578 from Wikia/release-156-aden-4-and-5-addriver-clean-up-adserver-and-spotlights

ADEN-4 and ADEN-5 AdDriver PHP clean up