release: initial release notes (#3204)

* release: initial release notes

Core of the release notes.

Signed-off-by: Miek Gieben <miek@miek.nl>

* typo

Signed-off-by: Miek Gieben <miek@miek.nl>

* review

Signed-off-by: Miek Gieben <miek@miek.nl>

* spell check

Signed-off-by: Miek Gieben <miek@miek.nl>

notes/coredns-1.7.0.md

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+title = "CoreDNS-1.7.0 Release"
+description = "CoreDNS-1.7.0 Release Notes."
+tags = ["Release", "1.7.0", "Notes"]
+release = "1.7.0"
+date = 2019-08-31T14:35:47+01:00
+author = "coredns"
++++
+
+The CoreDNS team has released
+[CoreDNS-1.7.0](https://github.com/coredns/coredns/releases/tag/v1.7.0).
+
+In this release we have deprecated the *federation* plugin that was used in conjunction with the
+*kubernetes* plugin.
+
+Further more a slew a spelling corrections and other minor improvements and polish. **And** three(!)
+new plugins.
+
+# Plugins
+
+* [*acl*](/plugins/acl) blocks queries depending on their source IP address.
+* [*clouddns*](/plugin/clouddns) to enable serving zone data from GCP Cloud DNS.
+* [*sign*](/plugins/sign) that (DNSSEC) signs your zonefiles (in its most basic form).
+
+## Brought to You By
+
+
+## Noteworthy Changes
+
+* plugin/clouddns: Add Google Cloud DNS plugin (https://github.com/coredns/coredns/pull/3011)
+* plugin/federation: Move federation plugin to github.com/coredns/federation (https://github.com/coredns/coredns/pull/3139)
+* plugin/file: close reader for reload (https://github.com/coredns/coredns/pull/3196)
+* plugin/file: respond correctly to IXFR message (https://github.com/coredns/coredns/pull/3177)
+* plugin/k8s_external handle NS records (https://github.com/coredns/coredns/pull/3160)
+* plugin/kubernetes: handle NS records (https://github.com/coredns/coredns/pull/3160)