Add/google-calendar

[lambtron]

Display either:

• next event
• or full day event, if there is one
• or the day's longest event

This looks like a good module:
https://www.npmjs.com/package/google-calendar-helpers

[lambtron]

Also for reference:
https://github.com/lambtron/pepperbotts/blob/master/app/helpers/google.js