Update ZSS version to 1.4.13 (#32)

Author: cdjackson

pom.xml

@@ -9,7 +9,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<maven.compiler.source>1.8</maven.compiler.source>
 		<maven.compiler.target>1.8</maven.compiler.target>
-		<zss.version>1.4.11</zss.version>
+		<zss.version>1.4.13</zss.version>
 	</properties>
 
 	<dependencies>