Settings Engine Expiration Policy For History Should Be Configurable

[wixbot]

Right now the policy is probably good as a default for most users, but cannot be customized. Users should be able to control how much history they want to keep or discard.

This should be customizable differently for different machines (per-machine setting), and also configurable on individual remote databases, as certain ones will be more storage constrained than others.

It might also be interesting to offer a quota setting that limits storage to a specific amount - for example, a user might want to devote only 1 GB of their dropbox account to settings history, but more on their NAS.

Originally opened by mike-gc

[wixbot]

Originally changed by mike-gc
AssignedTo set to mikegc