Merge pull request #9580 from KevinGrandon/bug_867781_calendar_build_credentials

Bug 867781 - Move calendar configuration into distribution file. r=lightsofapollo(cherry picked from commit 0fc065f184e5622a24131956e5b935ebad6bfb2f)

Conflicts:
	apps/calendar/README.md
	apps/calendar/js/presets.js