Proposed Patch: Add Piwik Tracking Support

I like using this plugin for all of my sites, but I also want Piwik tracking to be included as that’s a front-runner of Google Analytics alternatives (plugin’s name is “Event Tracking for Gravity Forms” anyway so it could be more than just Google Analytics).

I have gone ahead and added this functionality and can confirm it’s working. As such I’ve proposed a patch via GitHub: https://github.com/ronalfy/wordpress-gravity-forms-event-tracking/pull/28