* add ns1 libs to vendor
* Create shim and wire into tests
* ns1 provider more working.
* vendor correct files
* comment diff functions
* ns1 docs
* making mx work with ns1
* ?
* refactor tests to make capability blocks easier. fix up ns1
* Add support for SRV records for NAMEDOTCOM and ROUTE53.
* Improve docs
* Rename RR() to ToRR().
* Rename RecordConfig Priority to MxPreference (affects json IR data)
* initial refactoring of diffing
* making cloudflare and others compile
* gandi and gcloud. no idea if gandi works anymore.
* r53
* namedotcom wasn't working.