Bump qdox from 2.0-M9 to 2.0.0 (#36)

Bumps [qdox](https://github.com/paul-hammant/qdox) from 2.0-M9 to 2.0.0.
- [Release notes](https://github.com/paul-hammant/qdox/releases)
- [Commits](https://github.com/paul-hammant/qdox/commits/qdox-2.0.0)

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plexus-java/pom.xml

@@ -72,7 +72,7 @@
     <dependency>
       <groupId>com.thoughtworks.qdox</groupId>
       <artifactId>qdox</artifactId>
-      <version>2.0-M9</version>
+      <version>2.0.0</version>
     </dependency>
     <dependency>
       <groupId>javax.inject</groupId>