LDEV-3316: Introduce LAMSBaseDAO. This is basically a copy of BaseDAO type but not extending HibernateTemplate. In order to get rid of HibernateTemplate, in next steps: subtypes will be moved from BaseDAO type hierarchy into LAMSBaseDAO hierarchy.
LDEV-3335, LDEV-3340: Make SessionManager a storage for servlet context, so it can be accesses by other classes at any time. Remove obsolete SSO classes.
LDEV-3335, LDEV-3340: Remove a filter which sets inactive timeout in sessions. With new SSO it is just needed in Central and it is already taken care of by SessionListener.