new implementation for in-house nominatim (OSM)
add user+pwd
check result by response code
fix lng to lon
make Nominatim reverse geocoding work
replace the vestigial "Google" stuff with "OSM Nominatim"
replace the vestigial "Google" stuff with "OSM Nominatim"
Nominatim: cosmetics to match clevis' code standards
munge addresses to fit with Nominatim (remove ZIP and city parts)
Nominatim: cosmetics
Nominatim OSM geocoder

closes #7