title: I can't install spring-security-core plugin in Grails
body: <p>I have windows 7 and Grails-2.0.4. Trying to install plugin spring-security-core. I've tried from everywhere: <code>cmd</code>, Idea, SPS. Nothing works. Everywhere the same error: </p>
  
  <pre><code>!Error resolving  plugin [name: spring-security-core, group: org.grails.plugins, version: latest.integration(1.2.7.3 in SPS)]. Plugin not found.
  !Error Plugin not found  for name [spring-security-core] and version[not specified(1.2.7.3 in SPS)]
  </code></pre>
  
  <p>I tried to put the zip-file of this plugin in different directories. Doesn't work. With connection everything is OK. Help me please.</p>