Issue #209 : add more APIs to NSDate+Paco
Issue #209 : code refactor of renaming a method
Issue #209 : code refactor of renaming a method
Issue #209 : add new APIs and unit tests
Issue #209 : minor fix for pacoDateByAddingDayInterval
Issue #209 : add ESM schedule and place-holder for unit tests
Issue #209 : add some unit tests for daily esm