85566: Merged V4.2-BUG-FIX (4.2.4) to HEAD-BUG-FIX (5.0/Cloud)
85474: Merged DEV (4.2.4) to V4.2-BUG-FIX (4.2.4)
84715: MNT-12398 : FeedNotifier - Users mixed up, fail to send notification email
Added a test to simulated the issue.
Changed the FeedNotifier to use the runAsUser as it is set to run as system.
85443: MNT-12398 : FeedNotifier - Users mixed up, fail to send notification email
Set the full security context in FeedNotifier and clear it after execution.
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@94503 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261