Attempt to migrate to API v3

I think I managed to do the migration to API v3.

You need a google api key now, but the key is obtained for free in google's developers console (up to 500,000 requests per day...). Please google for instructions.
My changes includes a fix of a time zone issue (see recent issues) as well as the option to generate google maps links (with links to maps.google.de), which is deactivated by default.

BIG DISCLAIMER: I made my changes to the compiled .js file and just tried to backport these changes to the coffee-script (just to make them useful for other people). Since I am not used to coffeescript and I even did not test the result (I am even not very familiar with javascript...), there may well be errors. Anyway, I think my pull request should help and may save sugi some time at the weekend...