Imported from archive.

* lib/menus/active: Merged into lib/menus/miscellaneous and removed.

* lib/menus/miscellaneous (choose_gender, choose_name)
(main_utility): Added menus to enter/exit the game, select gender
and pick a randomly-generated avatar name from a list.

* lib/muff/muffcmds.py: Changed user state names to employ
underscores instead of spaces.
(command_show): New admin command to ease debugging of data
relationships.
(generic_menu_handler): New function abstract out common routines
from typical menu state handlers.
(handle_user_input): For aesthetics, user input is now followed by a
blank line of output if we expect the client isn't echoing.

* lib/muff/muffmain.py (main): The main loop is now followed by a
muffiniv.universe.save during shutdown, in case any changes have
occurred since the last save.

* lib/muff/muffmenu.py
(get_menu): Refactored to be more modular, and broke out a lot of
its pieces into additional functions.
(get_choice_action, get_choice_branch, get_default_action)
(get_default_branch, get_default_menu_choice)
(get_formatted_default_menu_choice, get_formatted_menu_choices)
(get_menu_actions, get_menu_branches, get_menu_choices)
(get_menu_description, get_menu_prompt): New functions abstracted
out of the previously spaghetti-like get_menu function.
(get_echo_message, get_echo_sequence, menu_echo_on): New functions
to take care of enabling and disabling echo for password prompts.

* lib/muff/muffmisc.py (replace_macros): Implemented gender-specific
pronoun replacement macros, to make English-language messages less
awkward.

* lib/muff/muffuniv.py: New module implementing DataFile, Element
and Universe classes, for a more object-oriented approach.

* muff: Renamed to mud.py.

* muff.conf: Renamed to mudpy.conf.