geocode 6.x-1.0-alpha2

I have changed the way that the geocode widget for CCK uses form data to pass through its Geocoding system. Previously, it used a validate hook, but that approach was a little sketchy and it also came before a lot of other important form work.

Bugs that are expected to be fixed by this update:
#574946: Geocode don't work if the geo field or/and the source field (textfield) are in a group (fieldset)
#666736: geocode doesn't create longitude / latitude information on user registration pages
#624800: Geocode one computed address from multiple fields