title: How to push new branch without history
body: <p>I have git repo with two unrelated branches, master and configs.
  I've created configs, purged all the files and then placed in configuration files only.
  Now I want to push this on remote repo, but as it were new, empty branch (without logs of all my changes and old revisions of original branch).</p>
  
  <p>How can I purge all the history and push it?</p>