in NaturalComparator use Long instead of Integer for number comparison

Change-Id: If09c10c48072bf90aa1f9c05bc60477388666a99

java/com.sap.sse.common/src/com/sap/sse/common/util/NaturalComparator.java

@@ -47,7 +47,7 @@ public class NaturalComparator implements Comparator<String> {
 
             // Compare all-digit blocks as numbers - all-char blocks as strings
             if (Character.isDigit(aBlock.charAt(0)) && Character.isDigit(bBlock.charAt(0))) {
-                result = Integer.valueOf(aBlock).compareTo(Integer.valueOf(bBlock));
+                result = Long.valueOf(aBlock).compareTo(Long.valueOf(bBlock));
             } else {
                 result = aBlock.compareTo(bBlock);
             }