title: Issue upgrading spring plugin in grails
body: <p>I am upgrading my application, i was using:</p>
  
  <pre><code>compile ":spring-security-core:1.2.7"
  compile ":spring-security-ldap:1.0.6"
  </code></pre>
  
  <p>and upgraded it to </p>
  
  <pre><code>compile ":spring-security-core:2.0-RC5"
  compile ":spring-security-ldap:2.0-RC2"
  </code></pre>
  
  <p>After making changes related to the packages, i am not able to see the login page. It keep me redirecting to <strong>/login/auth</strong>.
  What more needs to be done?</p>