upgrade to xeiam 1.6
upgrade to xeiam 1.6
upgrade to xeiam 1.8
upgrade to xeiam 1.8
upgrade to xeiam 1.8
move the null impl down into the core.
Trim down the mtgox stack module
Module Provider for simulation trading.. this won't compile without trade implementations.
remove unused imports
Add "simulation" to some of the module names
contract for mtgox to throw an exception if an order id is not returned.
cleanups in the simulation binding as well as providing a shutdown for the trade agent