Remove Event#to_ical and update tests
Extract Event.to_ical to IcalRenderer#render
Extract private methods to set calender entries
Move responsiblities to the class level so iCalRenderer can focus on one event at a time
Memoize entry.description in iCal rendering
Set entries in a consistent way
minor refactor.
Merge pull request #192 from moedu23/extract_event_ical_rendering

Extract Event.to_ical to Event::IcalRenderer