story auto close initial support.
update story auto close.
Merge branch 'master' of /opt/alminium/vendor/plugins/redmine_backlogs into story-autoclose
config to disable story auto close and the function is disabled in default now.
Merge branch 'master' into story-autoclose

Conflicts:
	app/views/shared/_settings.html.erb
	config/locales/fr.yml
	config/locales/ru.yml
	config/locales/zh.yml
Merge branch 'master' into story-autoclose
tests
make it actually work

nicer implementation
implement loosely following by available story stati
Merge pull request #773 from patrickatamaniuk/feature/story-status-loosely-follows-tasks

story status loosely follows tasks