This is not currently returned by any of the supported lookups,
but it COULD be.

It makes it easier to add a custom lookup class or filter available
services by manipulating the correct service array.

This reverts commit 196777ea.

This reverts commit 082c526d, reversing
changes made to 242a29f8.

Some regions appear to not return this in JSON

Google and Okf perform additional checks to determine if a request is
valid. It needs to be checked first if json parsing succeeded before
accessing values of it, or else an error will occur.

and format for consistency.

GeoLite2 is a free version of a product called GeoIP2. Both use the same
format.

Postgres correctly identifies OIDs when BEARING and DISTANCE contain
numerical values. It fails to identify OID for a NULL type.

This patch explicitly sets an OID type for NULLs when running in
PostgreSQL environment.

Handle responses that only have one component in the Location field, assume this is a county and so return blank city

Add PostcodeAnywhere API error handling; Map key limit exceeded, invalid key to Geocode errors and call all others as just Error

Since we only want to select one IP block anyway, limiting this query
reduces the query cost from (cost=22531.65..22539.67 rows=1 width=31)
to (cost=0.53..8.54 rows=1 width=31)