Refactoring of IntentId based APIs

- getIntent
- getIntentState
- getInstallableIntents

Change-Id: I6d2073dfa165e0e5adcef46fe5908b563b481a43
diff --git a/cli/src/main/java/org/onosproject/cli/net/IntentIdCompleter.java b/cli/src/main/java/org/onosproject/cli/net/IntentIdCompleter.java
index 7c5a480..4e418b7 100644
--- a/cli/src/main/java/org/onosproject/cli/net/IntentIdCompleter.java
+++ b/cli/src/main/java/org/onosproject/cli/net/IntentIdCompleter.java
@@ -39,7 +39,7 @@
         Iterator<Intent> it = service.getIntents().iterator();
         SortedSet<String> strings = delegate.getStrings();
         while (it.hasNext()) {
-            strings.add(it.next().id().toString());
+            strings.add(it.next().key().toString());
         }
 
         // Now let the completer do the work for figuring out what to offer.