Refs #17644 Destinet; always set the 'Destinet user' keyword on Naaya Contacts in who-who/destinet-users folder, using event handlers

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20528 a0171fae-0946-0410-966d-b1775066cd26
Refs #17644 Destinet; update changelog.rst

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20529 a0171fae-0946-0410-966d-b1775066cd26
Refs #17644 Destinet; improve code formatting in event handlers.rst

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20530 a0171fae-0946-0410-966d-b1775066cd26