Check that the LC end date found is later than the document date itself
check end review date for PR and PER
use info message instead of warning
when looking for an end review date, send a warning if no date in the SOTD is over the publication date
Merge branch 'master' into denis/lc-end-date

Conflicts:
	lib/profiles/PER.js
	lib/profiles/PR.js
PR #41 (check that the LC end date found is later than the document date itself).

Fixed a bogus manual merge in my previous merge from master.
Merge pull request #41 from w3c/denis/lc-end-date

Check that the LC end date found is later than the document date itself