Upgrade htmlcleaner from 2.5 to 2.9, this is the highest version to let Xpath2Selector pass the test cases.

Author: sutra

pom.xml

@@ -171,7 +171,7 @@
             <dependency>
                 <groupId>net.sourceforge.htmlcleaner</groupId>
                 <artifactId>htmlcleaner</artifactId>
-                <version>2.5</version>
+                <version>2.9</version>
             </dependency>
             <dependency>
                 <groupId>com.github.detro</groupId>