Add release notes for 2.1.1

Author: slachiewicz

README.md

@@ -2,7 +2,6 @@ Plexus Containers
 ============
 
 [![Maven Central](https://img.shields.io/maven-central/v/org.codehaus.plexus/plexus-containers.svg?label=Maven%20Central)](https://search.maven.org/artifact/org.codehaus.plexus/plexus-containers)
-[![Build Status](https://travis-ci.org/codehaus-plexus/plexus-containers.svg?branch=master)](https://travis-ci.org/codehaus-plexus/plexus-containers)
 
 Plexus IoC Container core with companion tools.
 
@@ -14,6 +13,7 @@ We have changed the default branch in GitHub repository from `plexus-containers-
 
 You can find details about the different releases in the [Release Notes](https://github.com/codehaus-plexus/plexus-containers/blob/master/ReleaseNotes.md).
 
+ * [Release 2.1.1](https://github.com/codehaus-plexus/plexus-containers/blob/master/ReleaseNotes.md#plexus-containers-211).
  * [Release 2.1.0](https://github.com/codehaus-plexus/plexus-containers/blob/master/ReleaseNotes.md#plexus-containers-210).
  * [Release 2.0.0](https://github.com/codehaus-plexus/plexus-containers/blob/master/ReleaseNotes.md#plexus-containers-200).
 

ReleaseNotes.md

@@ -1,6 +1,15 @@
 Plexus Containers Release Notes
 =========================
 
+Plexus Containers 2.1.1
+---------------------
+Plexus Containers 2.1.1 requires Java 7 and Maven 3.2.5+
+
+### Improvements
+
+* Upgrade ASM to 9.2
+* Upgrade JDOM2 to 2.0.6.1
+
 Plexus Containers 2.1.0
 ---------------------