updated height of the action bar shadow drawable.

Author: AndroidDeveloperLB

MaterialStuffLibrary/res/drawable/msl__action_bar_shadow.xml

@@ -3,8 +3,10 @@
     android:shape="rectangle" >
 
     <gradient
-        android:angle="90" 
+        android:angle="90"
         android:endColor="#00000000"
         android:startColor="#43000000" />
 
+    <size android:height="9dp" />
+
 </shape>

MaterialStuffLibrary/res/layout/msl__activity_preference.xml

@@ -26,7 +26,7 @@
         <View
             android:id="@+id/msl__shadowView"
             android:layout_width="match_parent"
-            android:layout_height="9dp"
+            android:layout_height="wrap_content"
             android:background="@drawable/msl__action_bar_shadow"
             android:visibility="gone" />
     </FrameLayout>