Changelog for dns-2.0.8

2.0.8 - Better handling of encoding and decoding the "root" domain ".". [#45](https://github.com/kazu-yamamoto/dns/pull/45) 2.0.7 - Add length checks for A and AAAA records. [#43](https://github.com/kazu-yamamoto/dns/pull/43) 2.0.6 - Adding Ord instance. [#41](https://github.com/kazu-yamamoto/dns/pull/41) - Adding DNSSEC-related RRTYPEs [#40](https://github.com/kazu-yamamoto/dns/pull/40) 2.0.5 - Supporting DNS-SEC AD (authenticated data). [#38](https://github.com/kazu-yamamoto/dns/pull/38) - Removing the dependency to blaze-builder. 2.0.4 - Renaming a variable to fix preprocessor conflicts [#37](https://github.com/kazu-yamamoto/dns/pull/37) 2.0.3 - Handle invalid opcodes gracefully. [#36](https://github.com/kazu-yamamoto/dns/pull/36) 2.0.2 - Providing a new API: decodeMany. 2.0.1 - Updating document. 2.0.0 - DNSMessage is now monomorphic - RDATA is now monomorphic - Removed traversal instance for DNSMessage - EDNS0 encoding/decoding is now supported - Removed dnsMapWithType and dnsTraverseWithType functions - responseA and responseAAAA now take lists of IP addresses as their arguments - DNSHeader type no longer has qdCount, anCount, nsCount, and arCount fields