Google directions URL provides incorrect starting locations.

[tim-rohrer]

Discussed in code4recovery/12-step-meeting-list#857

Users have noticed that directions provided through TSML and TSML-UI are not originating at their correct current location, leaning to confusion about the accuracy of the directions.

This appears to be happening because Google has changed their recommended approach for building directions URLs.

Google Maps developer doc: https://developers.google.com/maps/documentation/urls/get-started#directions-action