R1:6b4998bf4beb

Increment copyright year and add 2017 dates to calendar import script

Summary: D4335 except a year later.

Test Plan: Nope.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Differential Revision: https://secure.phabricator.com/D8106