Changing proc db_bind_var_substitution (used only for db_exec_plsql) so that it doesn't do bind var substitution for bind variables that are in quotes. fixing bug 1113
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