Fix the version of commons-httpclient in the Maven configuration

There is no commons-httpclient version 4.3.6. It was changed mistakenly while updating the version of org.apache.httpcomponents dependencies in the pom.xml. This commit reverts the version to the original value which is the same used by the Ant build.

pom.xml

@@ -546,7 +546,7 @@
             <dependency>
                 <groupId>commons-httpclient</groupId>
                 <artifactId>commons-httpclient</artifactId>
-                <version>4.3.6</version>
+                <version>3.0.1</version>
             </dependency>
             <dependency>
                 <groupId>org.htmlparser</groupId>