Merge pull request #2 from claudehohl/master

Fork sync
Translations update, variable %s fix

-french translation update thx to @wushepeng
-missing connection between %s variable and theme files fixed
-all themes updated (shitty work - last time ;))
-polish translation slightly updated
%s variable in further files update
Merge pull request #225 from PJanisio/fixes

Translation update (french especially) and %s variable fix for stikked_lang.php