title: What uses / respects the .node-version file?
body: <p>I've searched Stack Overflow and GitHub (for both node and nvm) for an answer, but to no avail.</p>
  
  <p>In some repos (<a href="https://github.com/atom/atom/blob/master/.node-version">like GitHub's Atom text editor</a>, for instance), I've come across a <code>.node-version</code> file. It seems to be analogous to the <code>.ruby-version</code> standard file that works with any Ruby version manager to set the current version of Ruby correctly for the project.</p>
  
  <p><a href="https://github.com/creationix/nvm#usage">But as far as I can tell from its documentation</a>, nvm (Node Version Manager) only respects a <code>.nvmrc</code> file - it mentions nothing about a more general <code>.node-version</code> file. And there's no mention of <code>.node-version</code> in node's documentation (and I wouldn't expect there to be, since it doesn't ship with a version manager out of the box). I'm not aware of any other node version manager in heavy use.</p>
  
  <p>So my question is, what is <code>.node-version</code>? What tools actually use it? Is it just an alias for <code>.nvmrc</code>, or am I missing something here?</p>