131893 cturlica: REPO-1459: Make NodesImpl.isSpecialNode protected - changed isSpecialNode method signature to protected and updated Java doc git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@132315 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261