= New Features

* An hsts plugin has been added to easily add an appropriate 
  Strict-Transport-Security header:

    plugin :hsts
    # Strict-Transport-Security: max-age=63072000; includeSubDomains

    plugin :hsts, preload: true
    # Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

= Other Improvements

* The gem size has been reduced 25% by removing documentation.
