Merged in quixadhal/pyrom (pull request #46)

Added a BOOT custom log level, just above INFO.
Moved all the resource  stuff into a sysutils module, which can be expanded to hold other system-level stuff.
Added Google 2-factor authentication code.

Hooks in the login process, the creation process, and the player object need to be added to make use of this, but the code itself works.
Enabled 2-factor authentication in login process and added a command to toggle it on and off.
Also tweaked the logging so the most spammy stuff is a new trace() level that's below debug().
Merged in quixadhal/pyrom (pull request #47)

Google 2-factor authentication
Renamed handler_npc and sys_utils to be in-line with the others.
Fixed a typo in nanny.
Added a new instance class, but it's not done... I'll have to play with it for a while to see how it will evolve.
Merged in quixadhal/pyrom (pull request #48)

Renamed handler_npc and sys_utils to be in-line with the others.
Added instance and equipment stuff to CONCEPTS.
Cleaned up Items() class a bit (handler_items.py)
Merged in quixadhal/pyrom (pull request #49)

Added instance and equipment stuff to CONCEPTS.
Removed handler.py.  Refactored the methods to merc.py, and to instance.py.