Minor Bug Fixes

1.1.5 - 2016-03-20

• Previously, reading a database with a pointer in the metadata would cause an
  MMDB_INVALID_METADATA_ERROR to be returned. This was due to an invalid
  offset being used when calculating the pointer. The data_section and
  metadata_section fields now both point to the beginning of the data
  section. Previously, data_section pointed to the beginning of the data
  separator. This will not affect anyone using only documented fields from
  MMDB_s.
• MMDB_lookup_sockaddr will set mmdb_error to
  MMDB_IPV6_LOOKUP_IN_IPV4_DATABASE_ERROR if an IPv6 sockaddr is looked up
  in an IPv4-only database. Previously only MMDB_lookup_string would set
  this error code.
• When resolving an address, this library now relies on getaddrinfo to
  determine the address family rather than trying to guess it itself.