title: Magento Cron file inclusion error
body: <p>I have first time installed th cron job for magento.
  THere is one module that has a cronjob setup like following in config.xml</p>
  
  <pre><code>&lt;crontab&gt;
      &lt;jobs&gt;
          &lt;campaigns_observer_discount&gt;
              &lt;!-- each 7 minutes --&gt;
              &lt;schedule&gt;&lt;cron_expr&gt;*/1 * * * *&lt;/cron_expr&gt;&lt;/schedule&gt;
              &lt;run&gt;&lt;model&gt;campaigns/observer::discountExpiryAlert&lt;/model&gt;&lt;/run&gt;
          &lt;/campaigns_observer_discount&gt;
  
      &lt;/jobs&gt;
  &lt;/crontab&gt;
  </code></pre>
  
  <p>When cron.php runs the magento is looking for file under mage directory not in local folder
  the error states as follows</p>
  
  <pre><code>2011-08-12T13:38:07+00:00 ERR (3): Warning: include(Mage/Campaigns/Model/Observer.php): failed to open stream: No such file or directory  in /var/www/website/src/magento/lib/Varien/Autoload.php on line 93
  </code></pre>
  
  <p>It should look for <strong>Namespace/Campaigns/Model/Observer.php</strong> . I tried to change the parameter in config.xml</p>
  
  <pre><code>&lt;run&gt;&lt;model&gt;namespace_campaigns/observer::discountExpiryAlert&lt;/model&gt;&lt;/run&gt;
  </code></pre>
  
  <p>then magento looks for file <strong>Mage/Namespace/Campaigns/Model/Observer.php</strong></p>
  
  <p>Can any body suggest me where I am going wrong? THanks, ur help is much appreciated</p>