3.27.0  08-Dec-2017
        - demo: pep8 fixes (Christoph Reiter)
        - Fix ctypes.PyDLL construction under Windows (Christoph Reiter) (#622084)
        - configure.ac: Error out in case autoconf-archive isn't installed (Christoph Reiter) (#784428)
        - Move pygi-convert.sh into tools (Christoph Reiter)
        - README: Convert to reST (Christoph Reiter)
        - demo: Move demo into examples and dist it (Christoph Reiter) (#735918)
        - demo: Add new Gtk.FlowBox example (Gian Mario Tagliaretti) (#735918)
        - demo: Use HeaderBar for main app window (Simon Feltman) (#735918)
        - demo: PyFlakes and PEP8 fixes (Simon Feltman) (#735918)
        - demo: Rename gtk-demo.py to demo.py (Simon Feltman) (#735918)
        - demo: Rename demos/gtk-demo to simply demo (Simon Feltman) (#735918)
        - Remove AUTHORS file (Christoph Reiter)
        - Remove pre-commit.hook (Christoph Reiter)
        - setup.py: Port to distutils/setuptools (Christoph Reiter) (#789211)
        - Install a default SIGINT handler for functions which start an event loop (Christoph Reiter) (#622084)
        - Make Python OS signal handlers run when an event loop is idling (Christoph Reiter) (#622084)
        - Drop Python 3.3 support (Christoph Reiter) (#790787)
        - Drop set_value usage in Gtk.List/TreeStore.set override (Sander Sweers) (#790346)