Fix some ICU locale data

source/data/locales/sr.txt

 // ***************************************************************************
 // *
 // * Copyright (C) 2010 International Business Machines
 // * Corporation and others.  All Rights Reserved.
 // * Tool: com.ibm.icu.dev.tool.cldr.LDML2ICUConverter.java
 // * Source File:<path>/common/main/sr.xml
 // *
 // ***************************************************************************
 /**
  *  ICU <specials> source: <path>/xml/main/sr.xml
@@ skipping 11 matching lines @@
     }
     NumberElements{
         latn{
             patterns{
                 currencyFormat{"#,##0.00 ¤"}
                 decimalFormat{"#,##0.###"}
                 percentFormat{"#,##0%"}
                 scientificFormat{"#E0"}
             }
             symbols{
-                decimal{"."}
+                decimal{","}
                 exponential{"E"}
-                group{","}
+                group{"."}
                 infinity{"∞"}
                 list{";"}
                 minusSign{"-"}
                 nan{"NaN"}
                 perMille{"‰"}
                 percentSign{"%"}
                 plusSign{"+"}
             }
         }
     }
@@ skipping 820 matching lines @@
             other{"{0} нед"}
         }
         year{
             few{"{0} год"}
             many{"{0} год"}
             one{"{0} год"}
             other{"{0} год"}
         }
     }
 }