title: Vim - NERDTree - how to open a hidden folder (.name) in NERDTree plugin?
body: <p>I have a hidden folder which name starts with . (dot)
  I am editing files withing the parent folder but want to be able to access files within the hidden one as well from within NERDTree plugin under vim. </p>
  
  <p>Is there a way to do it?</p>