ad 5.x-1.5

Features:

• Redesigned administrative advertisement overview page, with filtering and mass editing.
• New module that filters duplicate clicks, bots, etc.
• New page for viewing click-details.
• Statistics collected at ad group granularity.
• Adserve variables can be overloaded in settings.php.
• Adserve _exit hook allows tagging of ads served by Ad module (ie, "Ads By...")
• New cache module: ad_cache_memcache

Many, many bug fixes and documentation cleanups.

Views integration was moved to the external Ad Views project, which is looking for a maintainer.