Fix error message for object_can_type and object_isa_type helpers
Add handling for subdivisions and represented_country
Update all docs for subdivisions and represented_country changes
Rename GeoIP2::Role::HasNames to GeoIP2::Role::Record::HasNames
Fix link - should be a code wrapper
Add some words to the spelling whitelist
Ignore README file in checkout - regen it when building distro
Remove remaining references to iso_3166_alpha_{2,3} fields