fix for the button styling (land)

res/layout-land/account_setup.xml

@@ -221,9 +221,10 @@
         android:layout_height="wrap_content"
 		android:layout_alignParentBottom="true"
         android:orientation="vertical" >
-        
-		<Button
+
+		<android.support.v7.widget.AppCompatButton
 		    android:id="@+id/buttonOK"
+			style="@style/ownCloud.Button"
 		    android:layout_width="match_parent"
 		    android:layout_height="wrap_content"
 		    android:layout_gravity="center_horizontal"