Fixes the timezone issues.

After fiddling for about an hour with timezones, I've fixed timezone issues simply by making everything UTC in the ics file. All dates should be added to the event as a UTC date.

For example:

`DateTime.parse('2013-12-15T17:30:00+00:00')` would be 11:30am central and 12:30pm eastern.

Time zones are a pain in the ass. lol