two-step registration, saving an api token too
establish a temporary connection to trello

this will be used to establish connections on a per-user basis for #2
multiuser support for card creation

for #2
multiuser support for card commenting

for #2
multiuser support for moving cards between lists

for #2
multiuser support for adding members to cards

for #2
multiuser support for linking cards

not sure why this needs it but whatever. for #2
multiuser support for creating help requests

for #2
multiuser support for claiming help requests

for #2
fix a variable name
bot.halt has been removed from cinch
prompt unregistered users to register when needed