Backtest log location

[askmike]

Backtests runs through the UI have surpressed logging, and we have to jump through some hoops to enable them again.

I'd recommend running Gekko over the CLI: this gives you more control, see this: https://gekko.wizb.it/docs/commandline/a...dline.html

It boils down to:

- open up sample-config.js and configure your market
- run `node gekko -c sample-config.js -b`

and voila