ACE-3485: Removed welcome banner dashlet from presets so that it doesn't get shown when creating new sites (still displayed for user dashboard) and updated QA Share/Share PO tests

git-svn-id: https://svn.alfresco.com/repos/alfresco-open-mirror/alfresco/HEAD/root@90474 7033f55c-6c29-4ad8-afba-765cb616e738
Modified SelectFolder method on CopyAndMoveContentFromSearchPage.java to fix the test failures

git-svn-id: https://svn.alfresco.com/repos/alfresco-open-mirror/alfresco/HEAD/root@90489 7033f55c-6c29-4ad8-afba-765cb616e738