Fix bug#1243628: don't reset last action date on any write; allow read-only users to log/send chatter messages
[FIX] fix test_20_message_post to take care of different notification_email_send default value in ocb
[FIX] don't reset last action date on any write
[FIX] don't reset last action date on any write
[FIX] fix test_20_message_post to take care of different notification_email_send default value in ocb
[FIX] fix test_20_message_post to take care of different notification_email_send default value in ocb