[Feature Request] Ability to Backup & Rollback

[iocouto]

It is invaluable to be able to 'save' the current state of a project/site, to rollback in case the next set of changes or experiments doesn't work out. This is also useful when we give clients or collaborators access to a site, and 15 minutes later they call us after having accidentally deleted half a page — or half the site...

Extra bonus points if we could do it using a version control system that allows us not only to rollback to a previous saved state, but to also branch out, safely experiment, and either merge the branch or throw it away.

[kof]

Similar to #2643

We have yet to decide if we are going to go for simple backups, versioning or branching.

[TrySound]

For now the only way to be safe after giving project to client is cloning the project.