updating testng to version 6.10 (#18)

Author: andrewmkrug

pom.xml

@@ -18,7 +18,7 @@
         <dependency>
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>
-            <version>6.9.13.6</version>
+            <version>6.10</version>
         </dependency>
     </dependencies>