Links to the relative parent in pom.xml.

This avoids the necessity of running "mvn install" manually
in the "parent pom".

desktop/libs/hadoop/java/pom.xml

@@ -23,6 +23,7 @@
   <parent>
     <groupId>com.cloudera.hue</groupId>
     <artifactId>hue-parent</artifactId>
+    <relativePath>../../../../maven/pom.xml</relativePath>
     <version>1.2.0-SNAPSHOT</version>
   </parent>