autostart: Pridane vypnutie screen a power saverov

* Pridane prikazy, ktore by mali hned po starte zabranit, aby sa monitor
  niekedy dostal do nejakeho usporneho rezimu.

Signed-off-by: mr.Shu <mr@shu.io>
Merge pull request #13 from fmfi-svt/mrshu/no-powersaving

autostart: Pridane vypnutie screen a power saverov