Add cloud-friendly changes storage

[peterdemin]

Filesystem in cloud deployment is ephemeral. Thus changes history must be stored somewhere outside. In S3, or database.

[poVoq]

Would also help with docker deployments to have the option to safe data to an outside docker volume.

[peterdemin]

Hi! Thanks for input, it helps prioritize further development. What about configuration? Should it leave in cloud storage too? Or pull from private repo?
I personally don't trust cloud providers with my secrets, like bank account, but find it convenient to install kibitzr inside container on my host. Do you mind sharing your use case so we can work out the best solution?
Also, how do you feel about contributing this functionality? I am sure it will be awesome extension.