changed internal program versioning naming conventions

Before, program version numbers consisting of four parts were named
"MAJOR.MINOR.PATCH.BUILD" internally. From now on, this will be named
"SUPER.MAJOR.MINOR.PATCH" instead, because this better reflects how
the four parts of the version numbers are really used nowadays.

For the Mirror Magic game engine, "MAJOR.MINOR.PATCH" is still used
internally, as there is no fourth part for the version number, so the
names of these version number parts currently do not match the parts of
the internal R'n'D version numbers with the same name, but parts 1, 2
and 3 (which would be "SUPER.MAJOR.MINOR" in R'n'D version numbers).