WPP 4.0.10

This release includes the following changes:

If you're using a caching plugin, flushing its cache after installing / upgrading to this version is highly recommended.

• Renames tracking script to prevent issues with ad blockers (props @Damienov).
• Widget: fixes caching (props @zu2).
• Exposes offset parameter to wpp shortcode / wpp_get_mostpopular template tag.