CatalogUtils.parseCatalogNumbers(): replace String.split() by StringUtils.split().

StringUtils.split() split by a character not by a regexp and should be faster.

No functional changes.

Author: php-coder

src/main/java/ru/mystamps/web/util/CatalogUtils.java

@@ -124,7 +124,7 @@ public static Set<String> parseCatalogNumbers(String catalogNumbers) {
 		}
 
 		Set<String> result = new LinkedHashSet<>();
-		for (String number : catalogNumbers.split(",")) {
+		for (String number : StringUtils.split(catalogNumbers, ',')) {
 			Validate.isTrue(!number.trim().isEmpty(), "Catalog number must be non empty");
 
 			String[] range = StringUtils.split(number, '-');