Don't add "s" in Czech translation
|Reported by:||anonymous||Owned by:||hugo|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
Django adds on many places 's' to table name and so on, to present plural. But in Czech are other methods to make from word plural and are match more complicated. Adding single s ist worster, that just present table name.