now we have app object and singletons are only: log logn plugin and app
git-svn-id: svn://ttmath.org/publicrep/winix/trunk@628 e52654a7-88a9-db11-a3e9-0013d4bc506e
added: the session file
sessions can still be available between starting and stopping the cmslu system
git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@529 e52654a7-88a9-db11-a3e9-0013d4bc506e