URL change to googleapis.com for Static Image

Hi Andrew, just noticed that the image call is using the maps.google.com format which has now been (or close to) phased out for the Google Map's & Geocoding API's in favour of the maps.googleapis.com format.

The template is fully functional without this change - merely suggesting this with regards to possible deprecation moving forwards. The maps.googleapis.com is now also the supported url accoding to the Static Maps API documentation.