8014: Extended support for RunAs - real and effctive authorities
8032: Build Fix - there is a special check for the effective user
8094: Fix for NPE in AuthenticationUtil noticed on first upgrade from V2.1.x to V2.2
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@8471 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
