Explosives Sp, Pl, Cz, Fr and Ru entries 

Explosives Spanish, Polish, Czech, French and Rusian entries.
Kept it in English when I've been unable to find a sure translation, some translation might be generic.
Merge pull request #957 from 11RDP-LoupVert/patch-26

Explosives Sp, Pl, Cz, Fr and Ru entries