#9948 Warning if the message was deleted since the notification was sent

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20043 a0171fae-0946-0410-966d-b1775066cd26
released 1.2.15; new version 1.2.16

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20044 a0171fae-0946-0410-966d-b1775066cd26