nopass policy only enabled when openchange is enabled
Updated changelog
Merge pull request #866 from Zentyal/mjulian/nopass-when-ochange-enabled

nopass policy only enabled when openchange is enabled
Merge branch '3.2' into 3.3

Conflicts:
	main/mail/ChangeLog
Merge branch '3.3'

Conflicts:
	main/mail/ChangeLog