Order queue fix and speedmining tweaks

[swiftcoder]

Commander.commands being a hashmap causes orders to be passed to sc2 in hash order (i.e. basically random), causing queued orders to be delivered in the wrong order about 50% of the time.

This prevented implementing the key speedmining boost trick, which is to queue the smart command on top of the move command.

With this fix in place, and the speedmining boost implemented, the speedmining example increases from a 3% bonus to an 8% bonus (the same speed up that Ares achieves in the Python world).