v2.2.0

• Added Maps integration.
• Added versioned cache keys.
  This allows more reliable changes to cached data in the future without
  causing confusing incompatibilities. This should be transparent to the user.
  This is primarily useful for users with persistent cache implementations.

PHP 8 support

Merge pull request #25 from ipinfo/uman/php8

Support PHP 8

Timeout & guzzle config override support

Merge pull request #21 from ipinfo/uman/fixes

Various updates & fixes for a v2.0.0