SFX Version Number (or build date)

[esbenbach]

Is your feature request related to a problem? Please describe.
In some rare cases we need to figure out which "version" of SFX the SF cluster is hosting.
For instance when reporting new bugs or updating existing ones.
Being able to see/view a separate SFX version would allow us (and you) to have a handle on which SFX version we are actually running.

Since the SF release notes does not mention anything about which SFX version is included, when/if its bumped etc, I think this would be a small change that would help benefit both contributers and reporters/users alike.