Make notifications app list use new manage apps

The designs for Settings have the notification app list using the
same UI as the Manage Apps list, so switch the notification app
list over to the ManageApplications fragment.  This involves
adding some notification based filters and connecting the data
from the Notification Backend to ApplicationsState.

Bug: 19443900
Change-Id: I5e5cdb16890d536613ee59292b89a89b6fb9e2e6

src/com/android/settings/applications/AppInfoBase.java

@@ -184,6 +184,11 @@ public abstract class AppInfoBase extends PreferenceFragment
         // No op.
     }
 
+    @Override
+    public void onLoadEntriesCompleted() {
+        // No op.
+    }
+
     @Override
     public void onPackageListChanged() {
         refreshUi();