Fixed grabbing of certified metrics; updated test to use "alexa.com" which is probably the best choice - it would last as long as alexa.com lasts
Removed Alexa non-direct parsing code - regular open edition of Alexa no longer provides any percentages (such as daily % reach) or other estimation hints on all sites. Probably it's still available for paid users, but it kind of kills the purpose. Directly measured ("certified") values still work, but the number of sites that directly employ Alexa's counters *and* publish the results is quite low :(