added SpellTimer. added EffectTimer. added spellTimers hashmap, players -> list of spell timers to MUDServer. added effectTimers hashmap, players -> list of effect timers to MUDServer. added getSpellTimers(...) method to MUDServer. added getEffectTimers(...) method to MUDServer. init_conn now initializes an entry in effectTimers for each player (need to cleanup afterwards). wrote code to add EffectTimer(s) for new effects in CastCommand. added 'timers' parameter to @debug to show timer info and remaining time for EffectTimer(s) and SpellTimer(s). added space for create function in ProgramInterpreter. fixed ObjectDB and ObjectLoader's handling of ignored lines, unused dbs and NullObject(s).