For the lookup of the kernel version kiwi provided a small
C program that reads the first bytes of the kernel binary
and extracts the version information. Given the various
compression formats and also the problem of kernel files
that contains the decompressor code which could be anything
it has turned out to be difficult to provide a stable tool
to read the version from the binary. Therefore the code in
kiwi was refactored to read the version via regexp match
from the filename which also makes kversion an obsolete
tool. This Fixes#1308
