新增异常处理机制，页面语音设置，网络设置

app/src/main/res/menu/menu_main.xml

@@ -1,7 +1,7 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:app="http://schemas.android.com/apk/res-auto"
         xmlns:tools="http://schemas.android.com/tools"
-        tools:context="chaoran.business.pda.chaoran.business.activity.MainActivity">
+        tools:context="chaoran.business.activity.MainActivity">
     <item
             android:id="@+id/action_setting_network"
             android:title="@string/action_setting_network"
@@ -14,9 +14,4 @@
             android:orderInCategory="100"
             app:showAsAction="never" />
 
-    <item
-            android:id="@+id/action_about"
-            android:title="@string/activity_about"
-            android:orderInCategory="200"
-            app:showAsAction="never" />
 </menu>