Add release 10.1.2 release notes (#2058)

RELEASING.md

@@ -3,7 +3,6 @@
 1. Communicate that a release is about to be released in [Gitter Akka Dev Channel](https://gitter.im/akka/dev), so that no new Pull Requests are merged
 1. Add a release notes entry in docs/src/main/paradox/scala/http/release-notes.md. As a helper run
 `scripts/commits-for-release-notes.sh <last-version-tag>` which will output a list of commits grouped by submodule, and the closed issues for this milestone.
-1. Update latest Akka 2.5 version variable `akka25Version` in `project/Dependencies.scala`
 1. Create a news item on https://github.com/akka/akka.github.com, using the milestones and `scripts/authors.scala previousVersion thisVersion`
 1. Once the release notes have been merged, create a [new release](https://github.com/akka/akka-http/releases/new) with the next tag version (e.g. `v13.3.7`), title and release description linking to announcement, release notes and milestone.
 1. Travis CI will start a [CI build](https://travis-ci.org/akka/akka-http/builds) for the new tag and publish artifacts to Bintray.

docs/src/main/paradox/release-notes/10.1.x.md

@@ -2,11 +2,64 @@
 
 ## 10.1.2
 
-10.1.2 is the thrid release in the 10.1.x series of Akka HTTP.
+10.1.2 is the third release in the 10.1.x series of Akka HTTP.
+
+Notably, this release:
+
+ * Introduces "Graceful" Server Termination ([#118](https://github.com/akka/akka-http/issues/118)): calling the newly introduced `terminate` on the `ServerBinding` will cause the binding to start gracefully rejecting new requests, while giving existing requests a deadline to complete normally.
+ * Discards Entities in Default RejectionHandler ([#38](https://github.com/akka/akka-http/issues/38)). Previously, when rejecting a request, the default rejection handler would not consume the request entity. The default rejection handlers have been updated to consume the request in this case.
+ * Appends a newline to every element when streaming CSV (and NDJSON, [#1931](https://github.com/akka/akka-http/issues/1931)): Previously, CSV lines would only be interspersed with newlines, but no final newline would be sent. While arguably this was a bug in itself, it also had the unfortunate effect that a newline would only be emitted when the next CSV line became available, which is especially surprising in situations where CSV data is produced relatively slowly.
+
+### **Changes since 10.1.1**
+
+For a full overview you can also see the [https://github.com/akka/akka-http/milestone/40?closed=1](Milestone):
 
 #### Fixes in akka-http-core
+
  * Default rejection handlers do now discard entity bytes when rejecting a request ([#38](https://github.com/akka/akka-http/issues/38))
 
+#### Improvements in akka-http-core
+
+ * Added toStrict to WS Messages ([#15](https://github.com/akka/akka-http/issues/15))
+ * Accept LF end of line instead of CRLF only ([#106](https://github.com/akka/akka-http/issues/106))
+ * Add setting ignore-illegal-header-for ([#687](https://github.com/akka/akka-http/issues/687))
+ * Support parameters for custom media types ([#2005](https://github.com/akka/akka-http/issues/2005))
+ * Accept response before request has been sent completely ([#1746](https://github.com/akka/akka-http/issues/1746))
+ * Added ability to set https proxy host and port through application.conf ([#995](https://github.com/akka/akka-http/issues/995))
+ * "Graceful" Server Termination #188 ([#2035](https://github.com/akka/akka-http/issues/2035))
+
+#### Fixes in akka-http
+
+ * fix 500 error in conditional GET for non-etag response ([#1951](https://github.com/akka/akka-http/issues/1951))
+
+#### Improvements in akka-http
+
+ * Discard Entity in Default RejectionHandler ([#38](https://github.com/akka/akka-http/issues/38))
+ * Adds missing parameter with required value directive for Java API ([#2025](https://github.com/akka/akka-http/issues/2025))
+ * Add Java DSL optionMarshaller ([#1247](https://github.com/akka/akka-http/issues/1247))
+ * Append newline to every element when streaming CSV (and NDJSON). ([#1931](https://github.com/akka/akka-http/issues/1931))
+
+#### Fixes in docs
+
+ * Fix Java snippet in Path Matcher doc page ([#2000](https://github.com/akka/akka-http/issues/2000))
+ * Add missing methods for creating custom binary MediaTypes ([#2008](https://github.com/akka/akka-http/issues/2008))
+ * Update outdated link in "Handling blocking operations" ([#2038](https://github.com/akka/akka-http/issues/2038))
+
+#### Improvements in docs
+
+ * Added explanations for beginners how to access the server ([#1975](https://github.com/akka/akka-http/issues/1975))
+ * Add dynamically updating routes example ([#1935](https://github.com/akka/akka-http/issues/1935))
+ * Recommend static Directives. imports over AllDirectives ([#1993](https://github.com/akka/akka-http/issues/1993))
+
+#### Fixes in akka-http2-support
+
+ * Ignore unknown h2 SETTINGS ([#2039](https://github.com/akka/akka-http/issues/2039))
+ * Allow h2 SETTINGS with large max header table size ([#2040](https://github.com/akka/akka-http/issues/2040))
+
+#### Improvements in akka-http2-support
+
+ * Run h2spec integration tests ([#1988](https://github.com/akka/akka-http/issues/1988))
+ * Allow Http2 without negotiation/TLS ([#1934](https://github.com/akka/akka-http/issues/1934))
 
 ## 10.1.1