No custom date generation code -- use Date#toISOString, which produces an RFC-3339 compatible string in UTC
Merge branch 'output-utc-timestamps' into dev
Update test
Clean up date handling a little; output '-' for invalid dates instead of the current date
Merge branch 'allow-multiple-sd-param-names' into dev
Merge branch 'output-utc-timestamps' into dev
Merge remote branch 'upstream/master' into dev
Cleaned up patch
Merge branch 'output-utc-timestamps-2' into dev

Conflicts:
	lib/glossy/produce.js
Match formatting
Merge branch 'output-utc-timestamps-2' into dev
Make consistent with generateDate