Do not disturb settings page.

General section:
Create switches for Phone calls & Messages.  Contact
filtering disabled for now.

Automatic section:
Add mode switching based on a simple overnight schedule.

Bug:14211946
Change-Id: Ibb4e916cd5c9970f483858db91d6165507ceeb1a

res/layout/notification_app_section.xml

@@ -15,5 +15,6 @@
 -->
 <TextView xmlns:android="http://schemas.android.com/apk/res/android"
     style="?android:attr/listSeparatorTextViewStyle"
+    android:id="@android:id/title"
     android:layout_width="match_parent"
     android:layout_height="wrap_content" />

res/layout/preference_zen_mode.xml

@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-<ImageView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/configure_zen_mode"
-    android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
-    android:layout_gravity="center_vertical"
-    android:padding="8dip"
-    android:visibility="gone"
-    android:background="?android:attr/selectableItemBackground"
-    android:src="@drawable/ic_bt_config"
-    android:contentDescription="@string/configure_zen_mode_description" />