upgrade github site maven plugin now that it is maven 3.1 compatible

Author: davidkarlsen

pom.xml

@@ -225,7 +225,7 @@
  <plugin>
       <groupId>com.github.github</groupId>
       <artifactId>site-maven-plugin</artifactId>
-      <version>0.8</version>
+      <version>0.9</version>
       <configuration>
         <message>Creating site for ${project.version}</message>
 	<server>github</server>