Check that visitors from google drive and other google sub sites are not counted as google search

links from google drive and other non-search google products (gmail, docs, forms) should not appear as "Google" in Search engines but as website referrers.

From email: I shared a google form having a link to a piwik tracked webpage .. and in the analytics it was showing all the views from the search engine.

Referrer email from Google properties appear to be: http://www.google.com/url?q=http%3A%2F%XXXXX%2F&sa=D&sntz=1&usg=AFQxxx

Let's check these are not counted as search engine + add unit test to make sure it always work in the future!

Keywords: academy