title: IntelliJ bad plugin how to start
body: <p>Hi I have just started using IntelliJ again and have version 9. I just installed the Mercurial plugin and now the ide won't start anymore. 
  Has an error of</p>
  
  <pre><code>Fatal error initializing class com.intellij.openapi.actionSystem.ActionManager:
  java.lang.VerifyError: class com.dcx.hg.MercurialVcs overrides final method getName.()Ljava/lang/String;
  </code></pre>
  
  <p>I now know that I should be using the plugin <strong>hg4idea</strong></p>
  
  <p>Is there a way I can remove this plugin so I can start the ide, I am sure there must be..</p>
  
  <p>Thanks in advance.</p>