Bump com.thoughtworks.qdox:qdox from 2.0.3 to 2.1.0 (#259)

Bumps [com.thoughtworks.qdox:qdox](https://github.com/paul-hammant/qdox) from 2.0.3 to 2.1.0.
- [Commits](paul-hammant/qdox@qdox-2.0.3...qdox-2.1.0)

---
updated-dependencies:
- dependency-name: com.thoughtworks.qdox:qdox
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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pom.xml

@@ -253,7 +253,7 @@
       <dependency>
         <groupId>com.thoughtworks.qdox</groupId>
         <artifactId>qdox</artifactId>
-        <version>2.0.3</version>
+        <version>2.1.0</version>
       </dependency>
       <!-- for XHTML to plain text and HTML to XHTML conversion -->
       <dependency>