57075: Merged V4.2-BUG-FIX (4.2.1) to HEAD-BUG-FIX (Cloud/4.3)
56562: Merged V4.1-BUG-FIX (4.1.7) to V4.2-BUG-FIX (4.2.1)
56138: Merged DEV to V4.1-BUG-FIX (4.1.7)
56075: MNT-9375 (related to MNT-9485): MT - when users are added to site with a group addition versus individual, they are not handled as members of site
Added JUnit test for the issue. Added the test to SecurityTestSuite.
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@61706 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261