Reverted to p-u .20

Author: krosenvold

pom.xml

@@ -51,7 +51,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-utils</artifactId>
-      <version>3.0.21</version>
+      <version>3.0.20</version>
     </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>