ground/maplib - Update google versions

Fixes ISSUE #731
ground/maplib - Update google version detection algo

Fixes ISSUE #731
ground/maplib Updated geocoding API

Also added new function to retrieve elevation from latlng coords.
ground/maplib Made geocoding language configurable
ground/maplib deleted unused files
ground/maplib Library rebranding first pass

Classes and Functions renaming.

The original library author was contacted and he wishes that the
branding be related to the project which actively keeps the library up
to date.
Since the original project doesnt seem interested we are doing this
ourselfs and as such rebranding it.
ground/maplib Library rebranding second pass

Root directory renaming.

The original library author was contacted and he wishes that the
branding be related to the project which actively keeps the library up
to date.
Since the original project doesnt seem interested we are doing this
ourselfs and as such rebranding it.
ground/maplib Created readme file with greatmaps project credits

Text to be discussed.
ground/maplib Library rebranding third pass

Added TauLabs as the author on all lib files.
Original author was mantained.

The original library author was contacted and he wishes that the
branding be related to the project which actively keeps the library up
to date.
Since the original project doesnt seem interested we are doing this
ourselfs and as such rebranding it.
Merge pull request #759 from guilhermito/#731_maplib_updates

Map Library updates - Fixes #731