Update Support4Demos targetSdkVersion to 19

BUG: 10752103
Change-Id: I11954c70b6b6a473a86264ea67961bb3b3a260cd
diff --git a/samples/Support4Demos/AndroidManifest.xml b/samples/Support4Demos/AndroidManifest.xml
index ce6c29c..46a4831 100644
--- a/samples/Support4Demos/AndroidManifest.xml
+++ b/samples/Support4Demos/AndroidManifest.xml
@@ -25,7 +25,7 @@
     <uses-permission android:name="android.permission.READ_CONTACTS" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
 
-    <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="17" />
+    <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="19" />
 
     <!-- The smallest screen this app works on is a phone.  The app will
          scale its UI to larger screens but doesn't make good use of them