* Added CAA support
* Fixed bind parsing of CAA records
* Added CAA parsing test
* Renamed CAA json fields
* Added CAA tag validation
* Updated CAA docs to clarify on the value field
* parse_tests: Fixed typo in caaflags
* Added integration test
* Small cleanups
* Add support for SRV records for NAMEDOTCOM and ROUTE53.
* Improve docs
* Rename RR() to ToRR().
* Rename RecordConfig Priority to MxPreference (affects json IR data)