Version v0.6.0: better handling of domain and search fields
Version v0.5.0: parsing scoped IPs and more improvements
Version v0.4.0: relies on rust 1.7 and std::net::IpAddr
Version v0.3.0: full implementation of resolv.conf (untested though)
Version v0.2.0: uses `IpAddr` type from `ip` crate
Release v0.1.0: first release on crates.io