Initial race feature commit. Added race selection in char creation. Added RavenMUD races and classes. Added race as field in set command. Added race in 'who' list and in score. Fixed class field in set command to allow the new classes. Race and class char data will now be saved and loaded correctly.
Removed filtering by class in 'who' command.
Merge pull request #2 from konradfatal/master

Initial race feature commit.  Also modifies do_who and score.