Refine application title and category in app.xml and pom.xml

- Remove ONOS keyword from application title
- Capitalize each keyword in application title
- Make it consistent to use App, Provider and Driver in
  application title
- Add right category name for each application
- Add missing application title and category
- Make application category comment more descriptive

Change-Id: Ib886b4a4293c38bd546a4107b20569f1bd7031a7
diff --git a/app.xml b/app.xml
index 62084f0..8f3e9e2 100644
--- a/app.xml
+++ b/app.xml
@@ -15,7 +15,7 @@
   ~ limitations under the License.
   -->
 <app name="org.onosproject.cordvtn" origin="ON.Lab" version="${project.version}"
-        category="default" url="http://onosproject.org" title="CORD Virtual Tenant Network"
+        category="Traffic Steering" url="http://onosproject.org" title="CORD Virtual Tenant Network"
         featuresRepo="mvn:${project.groupId}/${project.artifactId}/${project.version}/xml/features"
         features="${project.artifactId}"
         apps="org.onosproject.ovsdb-base,org.onosproject.openstackinterface,org.onosproject.dhcp">