Imported from archive.

* data/universe/rooms: Added a few example locations.

* lib/commands: Collapsed this directory into a single file.

* lib/muff/muffcmds.py, lib/muff/muffmisc.py, lib/muff/muffvars.py:
Replaced some risky try/except constructs with if/then/else
clauses.

* lib/muff/muffcmds.py (command_show): Added files and universe
parameter options.

* lib/muff/muffmisc.py (getlong, repr_long, setlong): Folded into
getint and friends.

* lib/muff/muffvars.py (save): Finished migrating into the
muffuniv.Universe.save method.
(variable_data): Moved to muffuniv.Universe.internals dict.