Update src/usdeur.py
more human configuration of watched market + export currency api key to config
read currency key from config
ignore config.py
rewrite almost everything
add some tests
trader bot and better arbitrer
update config
trader simulator
new bitcoin24 public market
log transaction
fix %s
new observer: history dumper
replay history option
--market arg option
add new market: bitstamp
fix except issue in market
update config.py-example
fix test
update documentation