-----
+ Semantic versioning
+ ``settings.INIT_HANDLER`` can be either string or list of strings
+ Service processes are started only in `runserver` command
+ ``Config.command_name`` contains name of the current management command
+ Clean code, fixes
+ Sphinx documentation
Upgrade from 1.1.x
+ Constants ``shelter.core.processes.SERVICE_PROCESS`` and
``shelter.core.processes.TORNADO_WORKER`` are moved to
``shelter.core.constants``.
+ ``Context.initialize_child`` keywords arguments are changed.
+ Majority of ``shelter.core.commands.BaseCommand`` control attributes are
removed, only ``settings_required`` is now available.
+ ``context`` and ``interface`` are not passed as keywords arguments into
``shelter.core.web.BaseRequestHandler`` constructor.