As I understand it (and @mattbasta can confirm), future plans include moving this info into the manifest. 

Rob makes a good point though, and I think it probably is correct to use `current_version`. I'm not sure any changes (specific to buchets) are necessary here though; we already allow the editing of this (qualitative) *type* of information elsewhere (e.g. "App Compatibility"). That may be a problem itself, but the point of this commit is to start collecting feature profile information from users ASAP, before the specific UI is worked out, so it seems like a good point to start.