[ADD] Parse-cron GEM
[ADD] Config.ru require cron_web
[ADD] Sidekiq - require cron
[ADD] Cron Scheduler - enable to save jobs into redis, remove them and enqueue them
[ADD] Cron poller - every POLL_INTERVAL go through all cron jobs and ask them if they should be enqued
[ADD] Cron poller to launcher
[ADD] Cron web - include web into tabs + add localization + views for it
[ADD] Cron usage example (just draft)