added release notes for upcoming 0.3.0-M2 release

* updated dependencies

Signed-off-by: Thomas Jaeckle <thomas.jaeckle@bosch-si.com>

bom/pom.xml

@@ -35,7 +35,7 @@
         <minimal-json.version>0.9.5</minimal-json.version>
         <typesafe-config.version>1.3.1</typesafe-config.version>
         <akka.version>2.5.13</akka.version>
-        <akka-http.version>10.1.1</akka-http.version>
+        <akka-http.version>10.1.2</akka-http.version>
         <akka-persistence-mongo.version>2.0.9</akka-persistence-mongo.version>
         <akka-management.version>0.14.0</akka-management.version>
         <casbah.version>3.1.1</casbah.version>
@@ -46,7 +46,7 @@
         <jjwt.version>0.7.0</jjwt.version>
         <jackson.version>2.9.5</jackson.version>
         <asm.version>5.2</asm.version>
-        <qpid-jms-client.version>0.32.0</qpid-jms-client.version>
+        <qpid-jms-client.version>0.33.0</qpid-jms-client.version>
         <newmotion-akka-rabbitmq.version>5.0.0</newmotion-akka-rabbitmq.version>
         <amqp-client.version>5.2.0</amqp-client.version>
         <reactive-streams.version>1.0.2</reactive-streams.version>

documentation/src/main/resources/_data/sidebars/ditto_sidebar.yml

@@ -36,6 +36,9 @@ entries:
     - title: 0.3.0-M1 Release notes
       url: /release_notes_030-M1.html
       output: web
+    - title: 0.3.0-M2 Release notes
+      url: /release_notes_030-M2.html
+      output: web
 
   - title: Installation
     output: web

documentation/src/main/resources/_posts/2018-06-15-milestone-announcement-030-M2.md

@@ -0,0 +1,41 @@
+---
+title: "Announcing Ditto Milestone 0.3.0-M2"
+published: true
+permalink: 2018-06-15-milestone-announcement-030-M2.html
+layout: post
+author: thomas_jaeckle
+tags: [blog]
+hide_sidebar: true
+sidebar: false
+toc: false
+---
+
+Today we, the Eclipse Ditto team, are happy to announce our next milestone 0.3.0-M2.
+
+The main changes are 
+
+* improvement of Ditto's cluster performance with many managed Things
+    * a new Ditto service [ditto-concierge](architecture-services-concierge.html) was added for this
+* improved cluster bootstrapping based on DNS with the potential to easy plugin other mechanism (e.g. for Kubernetes)
+
+Have a look at the Milestone [0.3.0-M2 release notes](release_notes_030-M2.html) for a detailed description of what 
+changed.
+
+## Artifacts
+
+The new Java artifacts have been published at the [Eclipse Maven repository](https://repo.eclipse.org/content/repositories/ditto/)
+as well as [Maven central](https://repo1.maven.org/maven2/org/eclipse/ditto/).
+
+The Docker images have been pushed to Docker Hub:
+* [eclipse/ditto-policies](https://hub.docker.com/r/eclipse/ditto-policies/)
+* [eclipse/ditto-things](https://hub.docker.com/r/eclipse/ditto-things/)
+* [eclipse/ditto-things-search](https://hub.docker.com/r/eclipse/ditto-things-search/)
+* [eclipse/ditto-gateway](https://hub.docker.com/r/eclipse/ditto-gateway/)
+* [eclipse/ditto-connectivity](https://hub.docker.com/r/eclipse/ditto-connectivity/)
+* [eclipse/ditto-concierge](https://hub.docker.com/r/eclipse/ditto-concierge/)
+
+<br/>
+<br/>
+{% include image.html file="ditto.svg" alt="Ditto" max-width=500 %}
+--<br/>
+The Eclipse Ditto team

documentation/src/main/resources/pages/ditto/release_notes_030M2.md

@@ -0,0 +1,61 @@
+---
+title: Release notes 0.3.0-M2
+tags: [release_notes]
+keywords: release notes, announcements, changelog
+summary: "Version 0.3.0-M2 of Eclipse Ditto, released on 15.06.2018"
+permalink: release_notes_030-M2.html
+---
+
+Since the last milestone of Eclipse Ditto [0.3.0-M1](release_notes_030-M1.html), the following changes, new features and
+bugfixes were added.
+
+
+## Changes
+
+### [Reduce network load for cache-sync](https://github.com/eclipse/ditto/issues/126)
+
+With 0.3.0-M1 Ditto had a performance issue when managing more than 100.000 Things in its memory as Ditto used a 
+distributed cluster cache which was not intended to be used in that way. Over time, as cache entries could not be deleted
+from this cache, a Ditto cluster got slower and slower.
+
+This is fixed now in 0.3.0-M2 by introducing a new Ditto service: [ditto-concierge](architecture-services-concierge.html)
+which is also shown in the [architecture overview](architecture-overview.html).
+
+This is the biggest change in this milestone which required a lot of refactoring effort. A big thank you to our two
+committers Daniel and Yufei which did an amazing job. The roundtrip times in a Ditto cluster are now at a constant and
+very good rate.
+
+### [Cluster bootstrapping improved](https://github.com/eclipse/ditto/issues/167)
+
+Ditto now uses the [akka-management](https://developer.lightbend.com/docs/akka-management/current/index.html) library
+in order to bootstrap a new cluster. By default Ditto uses a DNS-based approach to find its other cluster-nodes and
+bootstrap a not yet formed cluster. This works very well for Docker swarm based clusters.
+
+The benefit is also that the containers no longer need to be started in a specific order and with delay.
+
+Future versions could also benefit from the other bootstrapping mechanisms for `kubenertes`, `mesos` or `ec2` (AWS) 
+environment.
+
+## New features
+
+No new features for this milestone.
+
+
+## Bugfixes
+
+### Search index fixes
+
+The search-index of the [Ditto search](basic-search.html) had several issues which lead to a poor query performance
+when searching for Things.
+
+These issues were adressed in several fixes:
+* [#159](https://github.com/eclipse/ditto/pull/159)
+* [#169](https://github.com/eclipse/ditto/pull/169)
+* [#175](https://github.com/eclipse/ditto/pull/175)
+
+
+### Various smaller bugfixes
+
+This is a complete list of the 
+[merged pull requests](https://github.com/eclipse/ditto/pulls?q=is%3Apr+milestone%3A0.3.0-M2+).
+

documentation/src/main/resources/slides/2018_05_23-meetup-iot-hessen/index.html

@@ -189,13 +189,13 @@ <h2 style="font-size: 1.0em">23.05.2018</h2>
                 <h2>who am I?</h2>
                 <br/>
                 <div style="float:left; width: 25%;">
-                    <img src="../images/thjaeckle_400x400.jpg" style="width: 100%; border-radius: 50%" />
+                    <img src="../images/thjaeckle_400x400.jpg" alt="Thomas Jäckle" style="width: 100%; border-radius: 50%" />
                     <h4>Thomas Jäckle</h4>
                     <h4><a href="http://twitter.com/thjaeckle">@thjaeckle</a></h4>
                     <br style="clear: both"/>
                 </div>
                 <div style="float:right; width: 70%;">
-                    <img src="//www.brand.bosch.com/images/icons/bosch-logo.png" style="width: 30%; float: right; padding-left: 2px; margin-top: -1em"/>
+                    <img src="//www.brand.bosch.com/images/icons/bosch-logo.png" alt="Bosch logo" style="width: 30%; float: right; padding-left: 2px; margin-top: -1em"/>
                     <h4>software developer <br/>@ Bosch Software Innovations</h4>
                     <h4 style="padding-top:1em">project lead of Eclipse Ditto</h4>
                     <h4 style="padding-top:1em">lead developer of commercial service<br/>"Bosch IoT Things"</h4>

pom.xml

@@ -150,6 +150,17 @@
                 <role>Committer</role>
             </roles>
         </developer>
+        <developer>
+            <id>ffendt</id>
+            <name>Florian Fendt</name>
+            <email>florian.fendt@bosch-si.com</email>
+            <url>https://github.com/ffendt</url>
+            <organization>Bosch Software Innovations GmbH</organization>
+            <organizationUrl>http://www.bosch-si.com</organizationUrl>
+            <roles>
+                <role>Committer</role>
+            </roles>
+        </developer>
     </developers>
 
     <modules>