Added -nologin flag to disable automatic login of a new user. This is part of an initial foray into allowing certain kinds of 'low-barrier' registration, such as on a weblog comments system.
new version of the casting algorithm that Joel has documented in a flow chart diagram. The implementation of the algorithm is still in an alpha state and has a known bug
implementing support for groups mapped to a simulation to be marked multiple_cases_p which means that their users can (and should) be cast in many groups. Ticket 41