Foris fails with an error if version contains something different then
version. We have support for dash and some string after that which is
ignored. This should clearly signal now (I hope) that this is not 5.0
but just something that is in far future is going to be 5.0.

This version should more resemble non-final version.

Master is based on lastest development so it should always be the future
version. Currently that is 5.0. This marks it as that.

Signed-off-by: Michal Hrusecky <Michal@Hrusecky.net>