Prepare 0.9-M2.

Signed-off-by: Kai Hudalla <[email protected]>

Author: Kai Hudalla

site/content/download.md

@@ -45,6 +45,8 @@ The newest features and bug fixes are available in *milestones* that are publish
 *state of development* which also means that APIs or features may change from one milestone to the other.
 Installation works in the same way as for the latest stable release.
 
+* [Eclipse Hono 0.9-M2 Archive](https://www.eclipse.org/downloads/download.php?file=/hono/eclipse-hono-deploy-0.9-M2.tar.gz)
+* [Eclipse Hono 0.9-M2 Command Line Client](https://www.eclipse.org/downloads/download.php?file=/hono/hono-cli-0.9-M2-exec.jar)
 * [Eclipse Hono 0.9-M1 Archive](https://www.eclipse.org/downloads/download.php?file=/hono/eclipse-hono-deploy-0.9-M1.tar.gz)
 * [Eclipse Hono 0.9-M1 Command Line Client](https://www.eclipse.org/downloads/download.php?file=/hono/hono-cli-0.9-M1-exec.jar)
 

site/content/release-notes.md

@@ -2,7 +2,7 @@
 title = "Release Notes"
 +++
 
-## 0.9-M2 (not released yet)
+## 0.9-M2
 
 ### New Features
 
@@ -35,7 +35,7 @@ title = "Release Notes"
   has been renamed to *component-type*. The *protocol* tag formerly used by adapters to indicate the transport protocol
   that a message has been received over, has been replaced by the generic *component-name* tag which indicates the name
   of the component that a metric has been reported by. Please refer to the [Metrics API]({{< ref "/api/Metrics.md" >}})
-  for details.
+  for details. Note that these changes do not affect the legacy Graphite based metrics back end.
 
 ### Depreciations