Move the parent pom.xml into it's own subproject and fix some minor issues

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@555357 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/ipojo/plugin/pom.xml b/ipojo/plugin/pom.xml
index 116d580..f4a639e 100644
--- a/ipojo/plugin/pom.xml
+++ b/ipojo/plugin/pom.xml
@@ -3,6 +3,7 @@
     <artifactId>felix</artifactId>
     <groupId>org.apache.felix</groupId>
     <version>0.9.0-incubator-SNAPSHOT</version>
+    <relativePath>../../pom/pom.xml</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>org.apache.felix.ipojo.plugin</artifactId>