* Bump version.
* Fixed readme typo.
This resolves 1.
* Add note about symbols/weights.
* Add more detail to readme.
* Always stop main loop, fix position roll count.
* Fix open interest check, improve logging.
* Optimize Dockerfile.
* Improve config validation.
Raise an error when the weights don't sum to 1 or there are no symbols
defined.
* Improve log messages.