title: push --force-with-lease by default
body: <p>I just learned about <code>git push --force-with-lease</code>. It's pretty awesome. But, of course, I don't use force that often, and so I'm worried that I might forget about this nifty feature the next time I need it.</p>
  
  <p>Is there a way to configure git so <code>git push -f</code> will automatically use <code>--force-with-lease</code> unless I intentionally override it with <code>--no-force-with-lease</code>?</p>
  
  <p>(I can't imagine ever wanting to use force without lease!)</p>