[WIP] Patch provider's tests

- [ ] BingMaps
- [ ] GeoIP2Test
- [ ] GeoIPsTest
- [ ] GeoipTest
- [ ] GeoName
- [ ] GeoPlugin
- [ ] GoogleMaps
- [ ] GoogleMapsBusiness
- [ ] HostIp
- [X] IpInfoDb
- [X] MapQuest
- [x] MaxMind
- [ ] MaxMindBinary
- [ ] OpenCage
- [ ] TomTom

MaxMind uses IPv6 format according to [RFC 5952](http://tools.ietf.org/html/rfc5952).