A way to see current OpenMW version in the console

A request for a console command that shows the current OpenMW version. The reason for the request is to always have that information easily available as a thing to ctrl-c during play for e.g. bug reports. Unless there's already some way to do it right now besides restarting with --version or restart to check the main menu.

It could be called "version" and typing it would result in something like: Version: 0.36.1 Revision: 355ef14d

(RM-2780 from redmine: created on 2015-07-15 by Lars Söderberg, , relates #1421 (closed))