Refs #16609 Authenticated users can search other users to signup as participants

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20371 a0171fae-0946-0410-966d-b1775066cd26
Released 1.2.41 new version 1.2.42

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20372 a0171fae-0946-0410-966d-b1775066cd26