[Feature] Comment out calendar entries.

Author: zhanghai

app/src/main/AndroidManifest.xml

@@ -241,14 +241,14 @@
             </intent-filter>
         </receiver>
 
-        <receiver android:name=".calendar.app.CalendarAppWidgetProvider" >
+        <!--<receiver android:name=".calendar.app.CalendarAppWidgetProvider" >
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
             </intent-filter>
             <meta-data
                 android:name="android.appwidget.provider"
                 android:resource="@xml/calendar_appwidget" />
-        </receiver>
+        </receiver>-->
 
         <receiver
             android:name=".network.api.credential.SetApiCredentialReceiver"

app/src/main/java/me/zhanghai/android/douya/navigation/ui/NavigationFragment.java

@@ -129,9 +129,9 @@ public void onDrawerClosed(View drawerView) {
                     // TODO
                     UriHandler.open("https://music.douban.com/", getActivity());
                     break;
-                case R.id.navigation_calendar:
-                    openCalendar();
-                    break;
+                //case R.id.navigation_calendar:
+                //    openCalendar();
+                //    break;
                 case R.id.navigation_settings:
                     openSettings();
                     break;

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

@@ -33,13 +33,13 @@
     </group>
 
     <!-- Set an id on this group to show a divider. -->
-    <group android:id="@+id/navigation_group_secondary" >
+    <!--<group android:id="@+id/navigation_group_secondary" >
 
         <item
             android:id="@+id/navigation_calendar"
             android:icon="@drawable/event_note_icon_white_24dp"
             android:title="@string/navigation_calendar" />
-    </group>
+    </group>-->
 
     <!-- Set an id on this group to show a divider. -->
     <group android:id="@+id/navigation_group_tertiary" >