Regenerate initrd after configuring keyboard (bnc#888804)

* Some autotranslated code polishing (in a different commit for easier review)
* Update dependency on yast2 >= 3.1.94 (new messages)
Reason why to have near  chrooting is that you should never call it on real system, but on chroot, you should allow it, as it is safe environment. I am considering that for future we should create some helper for it.