Re-enable badges, with all dots

Also updated folder badge (dot) color to light gray,
added notification header back (with same number as
before, where each notification counts as >= 1),
and increased shadow opacity for the dots.

Change-Id: I53a3e0d94f23f482b55b3c10a922939ebb381314

src/com/android/launcher3/notification/NotificationKeyData.java

@@ -37,7 +37,7 @@ public class NotificationKeyData {
     private NotificationKeyData(String notificationKey, String shortcutId, int count) {
         this.notificationKey = notificationKey;
         this.shortcutId = shortcutId;
-        this.count = count;
+        this.count = Math.max(1, count);
     }
 
     public static NotificationKeyData fromNotification(StatusBarNotification sbn) {