Feature proposal. Refresh Pool git repo for Ansible changes.

At the moment, if you make a mistake in the git repo when creating Pool, the ansible repo is cached, and when the deployment fails, e.g. wrong submodule version, you have to remove a whole pool and create a new one for changes to take effect. Testing new games slows down the development if you have to remove the pool and create a new one each time. Maybe a refresh flag or just not caching it at all would be an option.