Merge pull request #149 from Keltek/master

Chronus: CS translation
Merge pull request #9 from DvTonder/master

Update source translation
Update FR translation
Merge pull request #150 from DelphinPETER/master

Update FR translation
Remove built in vclouds and modern Icon set strings
Fix EL translation
Updated SK
Merge pull request #151 from mikeNG/master

Fix EL translation
Merge pull request #152 from pylerSM/patch-11

Updated SK
Fix IW strings