title: Maven: must be a valid version but is 'RELEASE'
body: <p>I am very new to Maven and trying to use the <a href="http://code.google.com/p/c5-db-migration/" rel="nofollow">CarbonFive DB Migration</a> from Maven.</p>
  
  <p>Following their documentation, I added the following in my <code>pom.xml</code></p>
  
  <pre><code>&lt;pluginRepositories&gt;
      &lt;pluginRepository&gt;
          &lt;id&gt;c5-public-repository&lt;/id&gt;
          &lt;url&gt;http://mvn.carbonfive.com/public&lt;/url&gt;
      &lt;/pluginRepository&gt;
  &lt;/pluginRepositories&gt;
  </code></pre>
  
  <p>and </p>
  
  <pre><code>     &lt;plugins&gt;
         &lt;plugin&gt;
              &lt;groupId&gt;com.carbonfive.db-support&lt;/groupId&gt;
              &lt;artifactId&gt;db-migration-maven-plugin&lt;/artifactId&gt;
              &lt;version&gt;RELEASE&lt;/version&gt;
              &lt;configuration&gt;
                  &lt;url&gt;jdbc:mysql://localhost:3306/bb&lt;/url&gt;
                  &lt;username&gt;bb&lt;/username&gt;
                  &lt;password&gt;bb&lt;/password&gt;
              &lt;/configuration&gt;
              &lt;dependencies&gt;
                  &lt;dependency&gt;
                      &lt;groupId&gt;mysql&lt;/groupId&gt;
                      &lt;artifactId&gt;mysql-connector-java&lt;/artifactId&gt;
                      &lt;version&gt;5.1.6&lt;/version&gt;
                  &lt;/dependency&gt;
              &lt;/dependencies&gt;
          &lt;/plugin&gt;
        &lt;/plugins&gt;
  </code></pre>
  
  <p>Now when I try to run migration</p>
  
  <pre><code>$ mvn db-migration:migrate
  </code></pre>
  
  <p>I see error saying </p>
  
  <pre><code>[ERROR]     'build.plugins.plugin.version' for com.carbonfive.db-support:db-migration-maven-plugin must be a valid version but is 'RELEASE'. @ line 165, column 26
  </code></pre>
  
  <p>and <code>line 165</code> is </p>
  
  <pre><code>&lt;version&gt;RELEASE&lt;/version&gt;
  </code></pre>
  
  <p>which is as per their documentation.</p>
  
  <p>How do I resolve this issue?</p>