* change slider frome FrameLayout to LinearLayout

Author: mikepenz

library/src/main/res/layout/drawer.xml

@@ -10,12 +10,15 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"/>
 
-    <FrameLayout
+    <LinearLayout
         android:id="@+id/slider_layout"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_gravity="start"
-        android:background="@color/material_drawer_background"/>
+        android:background="@color/material_drawer_background"
+        android:orientation="vertical">
+
+    </LinearLayout>
     <!--
         android:layout_marginRight="@dimen/material_drawer_margin"
         android:layout_marginEnd="@dimen/material_drawer_margin"