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-1707: I18N'd the output of the marks in Submit Files and Forum so that they are shown as 1,234.5 or 1 234,5 depending on the user's locale. Put the code that actually handles the I18N in lams_common so it is available everywhere.