having to always update the ManagementVersion enum is too brittle

[Ladicek]

When referring to certain management version, commands use the ManagementVersion enum which contains all known versions. This is required so that commands can differentiate between application server releases and accomodate.

The same ManagementVersion enum is, at the same time, returned from management clients when the user asks for server version. And if the server is too new, it's "unknown" and version discovery fails with an exception. Since version discovery is performed eagerly (during management client creation), this basically prevents using older Creaper with newer server versions.

This design decision was made early and never revisited. It is now clear, in the hindsight, that it was a bad decision and must be changed.