added chaining-capable "add" method to MutablePropertyValues

org.springframework.core/src/main/java/org/springframework/core/convert/converter/ConditionalGenericConverter.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.core.convert.converter;
 
 import org.springframework.core.convert.TypeDescriptor;

org.springframework.core/src/main/java/org/springframework/core/convert/support/ConversionServiceFactory.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.core.convert.support;
 
 import org.springframework.core.convert.ConversionService;