Added Meetup UTC offsets to event start and end times
Added explicit UTC offset property to Event model
Replaced start and end times in API output with local times
Corrected API test with real event properties and datetime objects
Renamed event start and end time columns to "notz" (issue #37)
Renamed start and end times in API to remove "tz" suffix (issue #37)
Merge remote-tracking branch 'origin/master' into add-timezones

Conflicts:
	app.py
	tests.py
Merge branch 'add-timezones'