The old language-file for SK translation (vlmc_sk.ts) was renamed according the new template and then was the file updated to the newest version.

Signed-off-by: Marian Hikanik <podnety@mojepreklady.net>
Signed-off-by: Hugo Beauzee-Luyssen <beauze.h@gmail.com>

This was ugly and unfunctionnal, we will eventually come with something
better.

This reverts commit 606edd99a7996c80ae2f55b1679ebb16c7015116.

Backtrace generation is now in its own file, depending on the OS. First N symbols may be
skipped. Backtrace generation code isn't built when crash handler GUI is
disactivated.