Fix NPE in Home sample.

samples/Home/src/com/example/android/home/ApplicationsStackLayout.java

@@ -27,10 +27,8 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.view.LayoutInflater;
 import android.widget.TextView;
-import android.*;
 
 import java.util.List;
-import java.util.Map;
 
 /**
  * The ApplicationsStackLayout is a specialized layout used for the purpose of the home screen

samples/Home/src/com/example/android/home/Home.java

@@ -259,7 +259,8 @@ public class Home extends Activity {
                 mFavorites = new LinkedList<ApplicationInfo>();
             } else {
                 mFavorites.clear();
-            }            
+            }
+            mApplicationsStack.setFavorites(mFavorites);            
             
             FileReader favReader;