title: pathogen not loading nerdtree
body: <p>I've got pathogen in .vim/autoload and i've got nerdtree within my .vim/bundles directory. I've also got</p>
  
  <pre><code>filetype off
  call pathogen#helptags()
  call pathogen#runtime_append_all_bundles()
  filetype plugin indent on
  </code></pre>
  
  <p>in my .vimrc file</p>
  
  <p>for whatever reason though, when i run vim, NERDTree doesn't run. </p>
  
  <p>Any suggestions</p>