No globals

[mediocregopher]

Finally got around to this. I took out the global atoms that you had, and made a little method that creates a map that we pass around. I know this is a little more work for the common case (except for the public methods, I made passing the map to those optional), but it also makes it really easy to use other currencies, and to have a bot that interacts with multiple accounts/currencies.

[MarcoPolo]

Looks good, I'll merge it, and push it to clojars soon

[mediocregopher]

Please do, our money machine isn't ever gonna arrive so I gotta do it myself :P