Fix class cast exception when creating int attributes

game/src/main/org/apollo/game/model/entity/attr/AttributeMap.java

@@ -113,7 +113,7 @@ public final class AttributeMap {
 	private <T> Attribute<?> createAttribute(T value, AttributeType type) {
 		switch (type) {
 			case LONG:
-				return new NumericalAttribute((Long) value);
+				return new NumericalAttribute(((Number) value).longValue());
 			case DOUBLE:
 				return new NumericalAttribute((Double) value);
 			case STRING:

game/src/main/org/apollo/game/model/entity/attr/StringAttribute.java

@@ -1,6 +1,5 @@
 package org.apollo.game.model.entity.attr;
 
-import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;