Removing need for boilerplate app.xml; Instead defining onos.app.name and onos.app.origin (optional) is sufficient to trigger generation of boilerplate app.xml and features.xml files.

Change-Id: If50cc3a18134602d47fcf6f240ee6b0a20c6c329
diff --git a/calendar/features.xml b/calendar/features.xml
index 3790de0..c8d8a9a 100644
--- a/calendar/features.xml
+++ b/calendar/features.xml
@@ -14,9 +14,9 @@
   ~ See the License for the specific language governing permissions and
   ~ limitations under the License.
   -->
-<features xmlns="http://karaf.apache.org/xmlns/features/v1.2.0" name="${project.artifactId}-${feature.version}">
+<features xmlns="http://karaf.apache.org/xmlns/features/v1.2.0" name="${project.artifactId}-${short.version}">
     <repository>mvn:${project.groupId}/${project.artifactId}/${project.version}/xml/features</repository>
-    <feature name="${project.artifactId}" version="${feature.version}"
+    <feature name="${project.artifactId}" version="${project.version}"
              description="${project.description}">
         <feature>onos-api</feature>
         <feature>onos-thirdparty-web</feature>