Add "notification" category for samples.

Bug: 18323953
Change-Id: Ifb78015604fd203baaf5f4c6496a86aa6c831227

Android.mk

@@ -738,7 +738,8 @@ sample_groups := -samplegroup Background \
                  -samplegroup Testing \
                  -samplegroup UI \
                  -samplegroup Views \
-                 -samplegroup Wearable
+                 -samplegroup Wearable \
+                 -samplegroup Notification
 
 ## SDK version identifiers used in the published docs
   # major[.minor] version for current SDK. (full releases only)

docs/html/samples/notification.jd

@@ -0,0 +1,11 @@
+page.title=Notification
+@jd:body
+
+
+<div id="samples" class="notification">
+</div>
+
+
+<script>
+  $(document).ready(showSamples);
+</script>