5 - Life Engine: Add Google Now as existing

It's perfectly in line with the description and already does some of the examples cited. It also does some cool things not mentioned, like:
* Alert you when it's time to leave for an appointment, using the appointment location and current traffic
* Reminder to register for voting (in the US) when an election is coming up
* Automatically scan gmail emails for flight reservations, amazon packages and bills, and display cards with info about your flight/package/bil
* ...