title: Flush default cache
body: <p>I am using a couchbase memcached bucket for my cakephp default cache. I would like to be able to flush the cache when I change the schema within my cakephp app. There is a <a href="http://book.cakephp.org/2.0/en/core-libraries/caching.html#Cache%3a%3aclear" rel="nofollow">method</a> to clear the cache however it is asking for arguments. </p>
  
  <p>How do I use this method to clear / flush the cache?</p>
  
  <p>Edit: my bootstrap contains the setup for the cache config</p>
  
  <pre><code>Cache::config('default', array(
      'engine' =&gt; 'Memcache',
      'prefix' =&gt; Inflector::slug(APP_DIR) . '_',
      'servers' =&gt; array(
              '127.0.0.1:11211' // localhost, default port 11211
          ), //[optional]
      'duration' =&gt; 7200,
      'serialize' =&gt; false,
      'persistent' =&gt; true, // [optional] set this to false for non-persistent connections
      'compress' =&gt; false,
      'probability' =&gt; 100 
      )
  );
  </code></pre>