Updating onos-maven-plugin to 1.6 and onos-build-conf to 1.1

Change-Id: I8e9eabfc3ddb499028ec1abf6e626c09cd12e8b1
diff --git a/tools/package/maven-plugin/pom.xml b/tools/package/maven-plugin/pom.xml
index c2b5d8a..a891f32 100644
--- a/tools/package/maven-plugin/pom.xml
+++ b/tools/package/maven-plugin/pom.xml
@@ -23,8 +23,9 @@
         <relativePath>../../build/pom.xml</relativePath>
     </parent>
 
+    <groupId>org.onosproject</groupId>
     <artifactId>onos-maven-plugin</artifactId>
-    <version>1.6-SNAPSHOT</version>
+    <version>1.6</version>
     <packaging>maven-plugin</packaging>
 
     <description>Maven plugin for packaging ONOS applications or generating