title: vim-powerline: customizing the status line to display an indicator when there is a modified file in the buffers
body: <p>I use <a href="https://github.com/Lokaltog/vim-powerline" rel="nofollow">vim-powerline</a> plugin to customize the vim status line. As of now, the status line displays a <code>+</code> when the current buffer is modified. When I switch to a un modified buffer I can no longer tell if there is a modified buffer in the project. Currently, I use the <code>:files</code> or <code>:buffers</code> command to locate the modified buffers. </p>
  
  <p>Is it possible to customize the status line to display an indicator when there is a modified file in the buffers(even when the buffer is not current).</p>