* Add support for SRV records for NAMEDOTCOM and ROUTE53.
* Improve docs
* Rename RR() to ToRR().
* Rename RecordConfig Priority to MxPreference (affects json IR data)
* Handle IPv4 "Classless in-addr.arpa delegation" RFC2317 (partial).
* Validate PTR name when in RFC2317 "Classless in-addr.arpa delegation" domains.
* Update docs
* Set CanUsePTR for Route53 and Google CloudDNS.
* BIND: Replace "/" with "_" in filenames.
* providers/route53/route53Provider.go
* fix fmt
* check credentials, add Route53 fetch zones in init section and add check if delegation set is present or nil
* initial refactoring of diffing
* making cloudflare and others compile
* gandi and gcloud. no idea if gandi works anymore.
* r53
* namedotcom wasn't working.
* go changes to support nameservers_from
* clear nameservers before giving to dsp.
* work
* work
* nameserver updates.
* remove unused
* name.com stinks at NS records.
* whitespace
* removing web(belongs in own repo). First sketch of DSP vs NAMESERVER_FROM
* add DEFAULTS to replace defaultDsps.
* initial gcloud provider. Simple records work.
* namedotcom can do subdomain ns records now.
* fix for mx and txt
* kill dsp acronym
