-----
+ **INI** files support was removed from base ``shelter.core.config.Config``
+ Added new ``shelter.contrib.config.iniconfig.IniConfig`` class which
provides **INI** files configuration.
+ ``settings.LOGGING_FROM_CONFIG_FILE`` is no longer supported.
+ Added ``initialize()`` method into ``shelter.core.config.Config`` and
``shelter.core.context.Context`` classes.