Bug-fix: Remove flows from voltha for deleted subscriber, even if sadis cannot
fetch information about the deleted subscriber.

Other changes:
      - Added a cli command that details subscribers that have actually been programmed in the data plane
      - Changed all cli commands to start with volt-* as all app cli commands should
      - removed DeviceIdCompleter from the 'olts' cli command as it is not needed
      - removed unused method, renamed another one, fixed some logs
      - S-tags are no longer 'DeviceVlans', so changed variable name

Change-Id: I7cfde850669ed5b581fbac3195f68da28c4514c3
diff --git a/api/pom.xml b/api/pom.xml
index 74e93d8..87c67a4 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -32,6 +32,9 @@
     <description>OLT application API</description>
+    <properties>
+        <sadis.api.version>2.1.0</sadis.api.version>
+    </properties>
@@ -46,6 +49,12 @@
+        <dependency>
+            <groupId>org.opencord</groupId>
+            <artifactId>sadis-api</artifactId>
+            <version>${sadis.api.version}</version>
+        </dependency>