title: Upload plugin to hudson not working
body: <p>Im trying to make use of an email-ext plugin for hudson that was developed by chetan <a href="http://techkriti.wordpress.com/2008/08/30/using-groovy-with-hudson-to-send-rich-text-email/" rel="nofollow">here.</a></p>
  
  <p>It allows for rich text email to be used in the content of email notifications from hudson.</p>
  
  <p>The problem is I cant seem to upload the .hpi file</p>
  
  <p>I go to Hudson -> Manage Hudson -> Manage Plugins -> Advanced browse to .hpi file then click upload. After a few seconds I am taken to the manage plugins page. There is no output to the terminal and after restarting hudson there is no sign of the new plugin. Has anyone else had this problem?</p>
  
  <p>Thanks</p>