create set work date class is work_date.rb
create work_date.rb file
take today off duty date
modify call work_date in work_date_spec.rb
add work_dates table
modify call now_time day
add rufus-scheduler in Gemfile
create timing task
add resque
add resque route
add init data
modify timing task
create resque task for timing_send_tasks_mail.rb
add i18n set