Add new metrics (get counts for date and topic)
bug fix (count sent deco notifs with date and topic) and changes in url for raw notifs with date and topic
Merge remote-tracking branch 'upstream/master'
Issue #27 : mail with resources / mail in HTML format
Issue #31 : subject for SingleMultiTopicMailByRecipient
Fix minor bug in SingleMultiTopicMailByRecipientNotificator mail sending