title: Maven Release Plugin not updating SNAPSHOTs in dependencyManagement
body: <p>I have a company-wide parent pom with a <code>&lt;dependencyManagement&gt;</code> section which defines the versions of my projects that should be used throughout my application, some of which are SNAPSHOTs, a bit like this:</p>
  
  <pre><code>&lt;dependencyManagement&gt;
    &lt;dependencies&gt;
      ...
      &lt;dependency&gt;
        &lt;groupId&gt;my.group&lt;/groupId&gt;
        &lt;artifactId&gt;myArtifact&lt;/artifactId&gt;
        &lt;version&gt;1.0-SNAPSHOT&lt;/version&gt;
      &lt;/dependency&gt;
      ...
    &lt;dependencies&gt;
  &lt;/dependencyManagement&gt;
  </code></pre>
  
  <p>When I run <code>release:prepare</code> on the parent pom, these SNAPSHOTs are not removed.  The result is that the projects which inherit from the parent cannot use its versions when being released themselves.  How do I ensure that the <code>&lt;dependencyManagement&gt;</code> section of the parent pom is updated when I release? </p>
  
  <p>I saw this question: <a href="https://stackoverflow.com/questions/2089246/why-does-maven-release-plugin-allow-for-snapshot-version-in-dependency-managment">why does maven release plugin allow for SNAPSHOT version in dependency managment?</a>, but the tickets mentioned claim to be fixed in earlier versions of the plugin.</p>
  
  <pre><code>Maven Release Plugin 2.3.1
  Apache Maven 3.0.4 (r1232337; 2012-01-17 08:44:56+0000)
  Java version: 1.6.0_31, vendor: Sun Microsystems Inc.
  OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"
  </code></pre>