when running the bot and providing a correct env variable it errors: ` ERROR TypeError: ical.fromURL is not a function ` changing `ical` to `node-ical` [on line 74](https://github.com/potchin/hubot-holidaycalendar/blob/master/src/officecalendar.coffee#L74) of fixes the issue,.
when running the bot and providing a correct env variable it errors:
ERROR TypeError: ical.fromURL is not a functionchanging
icaltonode-icalon line 74 of fixes the issue,.