Updated language translations

// FREEBIE

res/values-zh-rCN/strings.xml

@@ -115,6 +115,7 @@
   <string name="ConversationActivity_transport_signal">暗号</string>
   <string name="ConversationActivity_lets_switch_to_signal">让我们切换到暗号 %1$s</string>
   <string name="ConversationActivity_lets_use_this_to_chat">让我们使用它来聊天：%1$s</string>
+  <string name="ConversationActivity_error_leaving_group">离开群组时错误</string>
   <string name="ConversationActivity_mms_not_supported_title">彩信不被支持</string>
   <string name="ConversationActivity_mms_not_supported_message">此信息无法发送，因为您的运营商不支持彩信。</string>
   <string name="ConversationActivity_specify_recipient">请选择一个联系人</string>
@@ -191,6 +192,7 @@
   <string name="DateUtils_just_now">刚刚</string>
   <string name="DateUtils_minutes_ago">%d 分钟</string>
   <string name="DateUtils_today">今天</string>
+  <string name="DateUtils_yesterday">昨天</string>
   <!--DeviceListActivity-->
   <string name="DeviceListActivity_unlink_s">断开 \'%s\' ？</string>
   <string name="DeviceListActivity_by_unlinking_this_device_it_will_no_longer_be_able_to_send_or_receive">如果断开此设备的连接，它将不能再接受或发送信息。</string>
@@ -319,6 +321,8 @@
   <string name="NotificationBarManager__cancel_call">取消呼叫</string>
   <!--NotificationMmsMessageRecord-->
   <string name="NotificationMmsMessageRecord_multimedia_message">多媒体信息</string>
+  <string name="NotificationMmsMessageRecord_downloading_mms_message">正在下载彩信</string>
+  <string name="NotificationMmsMessageRecord_error_downloading_mms_message">下载彩信时错误，点击重试</string>
   <!--MessageRecord-->
   <string name="MessageRecord_message_encrypted_with_a_legacy_protocol_version_that_is_no_longer_supported">已收到的信息使用了旧版本的暗号进行加密，并且已经不再被支持。请联系发送者升级暗号到最新版本然后再次发送该信息。</string>
   <string name="MessageRecord_left_group">您已经离开了此群组。</string>
@@ -382,6 +386,7 @@
   <string name="RecipientPreferenceActivity_disabled">禁用</string>
   <string name="RecipientPreferenceActivity_available_once_a_message_has_been_sent_or_received">消息发出或收到时可用</string>
   <!--RecipientProvider-->
+  <string name="RecipientProvider_unnamed_group">未命名的群组</string>
   <!--RedPhone-->
   <string name="RedPhone_answering">正在应答</string>
   <string name="RedPhone_ending_call">正在挂断</string>
@@ -535,6 +540,13 @@
   <!--SingleRecipientNotificationBuilder-->
   <string name="SingleRecipientNotificationBuilder_signal">暗号</string>
   <string name="SingleRecipientNotificationBuilder_new_message">新信息</string>
+  <!--WebRtcCallScreen-->
+  <string name="WebRtcCallScreen_new_safety_numbers">您与 %1$s 对话的安全码已经改变。这可能意味着某人正在尝试截获您的通讯，或者只是 %2$s 重新安装了暗号。</string>
+  <string name="WebRtcCallScreen_you_may_wish_to_verify_this_contact">您可能希望验证
+这个联系人的安全码。</string>
+  <string name="WebRtcCallScreen_new_safety_numbers_title">新的安全码</string>
+  <!--WebRtcCallControls-->
+  <string name="WebRtcCallControls_tap_to_enable_your_video">点击以启用你的视频</string>
   <!--attachment_type_selector-->
   <string name="attachment_type_selector__image">图片</string>
   <string name="attachment_type_selector__image_description">图片</string>
@@ -608,6 +620,7 @@
   <string name="conversation_fragment_cab__batch_selection_mode">批量选择模式</string>
   <string name="conversation_fragment_cab__batch_selection_amount">%s 已选择</string>
   <!--conversation_fragment-->
+  <string name="conversation_fragment__scroll_to_the_bottom_content_description">滚动到底部</string>
   <!--country_selection_fragment-->
   <string name="country_selection_fragment__loading_countries">正在读取国家列表...</string>
   <string name="country_selection_fragment__search">搜索</string>
@@ -933,6 +946,8 @@
   <string name="preferences_chats__message_trimming">信息整理</string>
   <string name="preferences_advanced__use_system_emoji">使用系统表情符号</string>
   <string name="preferences_advanced__disable_signal_built_in_emoji_support">禁用暗号内置的表情支持</string>
+  <string name="preferences_advanced__video_calling_beta">视频通话测试版</string>
+  <string name="preferences_advanced__enable_support_for_next_generation_video_and_voice_calls">当双方启用时，支持下一代视频和语音通话。此功能处于测试阶段。</string>
   <!--****************************************-->
   <!--menus-->
   <!--****************************************-->