welcomebot -- backlog improvements set a

[Fred T. Hamster]

welcomebot

welcomebot needs to use notecard configuration:

the welcomebot *must* draw its configuration out of the notecards.
the defaults in the script would become a joke, and could be made much shorter.

welcomebot needs to use data cow for storing the visitor list:

this is the obvious choice for something that needs lots of data storage; could increase our memory capacity like crazy.

fix welcomebot listing

when listing locally, it only shows the top X items in the log and truncates the rest.
show all by multi-log line trick employed many places.

remember time of av's last visit in history.

bug: make it not restart just because notecards change;

have another way to get it to reread notecard,
or just don't reset!

feature to pop a menu (if configured):

this menu could show the various options the owner set up.

configurable different actions for welcomebot:

show menu, give notecard, give landmark, request group membership,
show list of av's visited, repeat intro greeting, give toys out, etc.

allow the arrived/left messages to be turned off.

this would make it less noisy for people who don't want that.