added a 'classMap' that maps upper class names to enum class objects for easy retrieval by name. added getClass(...) method to Classes that takes a class name. added new skill alias mappings to Skills. added PClass class for player class and made all the enums in Classes instance of PClass. modified Skill and Skills classes to transition to PClass. changed 'pclass' in Player from type Classes to type PClass. modified relevant methods in Player to handle PClass(es). modified player count by class method in ObjectDB to use PClass. implemented 'party' command. added getPartyContainingPlayer(...) method to MUDServer that returns the party the player is in, if they are in one. added hasPlayer(...) method to Party that indicates whether the specified player is a member of the part. added removePlayer(...) method to Party that takes a player object to remove. cleaned up addMessage(...) method in MUDServer a little.