title: Yiistrap configuration issue
body: <p>I am trying to get Yiistrap (Bootstrap for the Yii Framework) to work on Cent OS 6.5. I've unpacked the yiistrap-master into extensions/bootstrap and added the following to protected/config/main.php:</p>
  
  <pre><code>// uncomment the following to define a path alias
  // Yii::setPathOfAlias('local','path/to/local-folder');
  // CWebApplication properties can be configured here.
  return array(
      'aliases'=&gt;array(
      'bootstrap'=&gt;'/var/www/html/happytails/protected/extensions/bootstrap'
      ),
  
   'import'=&gt;array (
      'bootstrap.helpers.TbHtml',
  
    'components'=&gt;array(
              'bootstrap'=&gt;array(
              'class'=&gt;'bootstrap.components.TbApi'
              ),
  </code></pre>
  
  <p>I also added the register function onto protected/views/layouts/main.php</p>
  
  <pre><code>&lt;?php /* @var $this Controller */ ?&gt;
  &lt;?php Yii::app()-&gt;bootstrap-&gt;register(); ?&gt;
  </code></pre>
  
  <p>This should work but I keep running into the error: </p>
  
  <blockquote>
    <p>Alias "bootstrap.components.TbApi" is invalid. Make sure it points to an existing PHP file and the file is readable. </p>
  </blockquote>
  
  <p>File is there and readable. I am not sure what could be the issue.</p>
  
  <pre><code>[root@unknown000c29a635f6 extensions]# ls -l
  total 4
  drwxrwxrwx. 10 nobody nobody 4096 Feb  5 01:50 bootstrap
  
  `[root@unknown000c29a635f6 bootstrap]# ls -l
  total 112
  drwxrwxrwx. 6 nobody nobody  4096 Feb  5 01:50 assets
  drwxrwxrwx. 2 nobody nobody  4096 Feb  5 01:50 behaviors
  -rwxrwxrwx. 1 nobody nobody   296 Jan 29 14:40 codeception.yml
  drwxrwxrwx. 2 nobody nobody  4096 Feb  6 20:29 components
  -rwxrwxrwx. 1 nobody nobody  1075 Jan 29 14:40 composer.json
  -rwxrwxrwx. 1 nobody nobody 54859 Jan 29 14:40 composer.lock
  drwxrwxrwx. 2 nobody nobody  4096 Feb  5 01:50 form
  drwxrwxrwx. 3 nobody nobody  4096 Feb  5 01:50 gii
  -rwxrwxrwx. 1 nobody nobody   555 Jan 29 14:40 Gruntfile.js
  drwxrwxrwx. 2 nobody nobody  4096 Feb  5 01:50 helpers
  -rwxrwxrwx. 1 nobody nobody  1521 Jan 29 14:40 LICENSE.txt
  -rwxrwxrwx. 1 nobody nobody   604 Jan 29 14:40 package.json
  -rwxrwxrwx. 1 nobody nobody   370 Jan 29 14:40 README.md
  drwxrwxrwx. 6 nobody nobody  4096 Feb  5 01:50 tests
  drwxrwxrwx. 2 nobody nobody  4096 Feb  5 01:50 widgets`
  </code></pre>
  
  <p>Thank you very much for any help you can provide on this subject.</p>