修改了logwindows输出，避免高频输出时卡死。修改了流程运行上下文，使节点具备终止分支运行的能力。

WorkBench.Remote/Themes/NodeTreeViewControl.xaml

@@ -0,0 +1,47 @@
+<UserControl x:Class="Serein.WorkBench.Themes.NodeTreeViewControl"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:Serein.WorkBench.Themes"
+             mc:Ignorable="d" 
+             d:DesignHeight="450" d:DesignWidth="800">
+    <UserControl.Resources>
+        <Style x:Key="ListItemNullFocusContainerStyle" TargetType="ListBoxItem">
+            <Setter Property="SnapsToDevicePixels" Value="true" />
+            <Setter Property="FocusVisualStyle" Value="{x:Null}" />
+            <Setter Property="Template">
+                <Setter.Value>
+                    <ControlTemplate TargetType="ListBoxItem">
+                        <Border Name="Border" Background="Transparent" SnapsToDevicePixels="True">
+                            <ContentPresenter />
+                        </Border>
+                    </ControlTemplate>
+                </Setter.Value>
+            </Setter>
+        </Style>
+    </UserControl.Resources>
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="auto"/>
+            <RowDefinition Height="auto"/>
+            <!--<RowDefinition Height="*"/>-->
+        </Grid.RowDefinitions>
+        <StackPanel Grid.Row="0">
+            <TextBlock Text="起始节点"/>
+
+            <ScrollViewer >
+                <local:NodeTreeItemViewControl x:Name="StartNodeViewer" Margin="4,4,4,4"/>
+            </ScrollViewer >
+        </StackPanel>
+        <StackPanel Grid.Row="1">
+            <TextBlock Text="全局触发器"/>
+            <ListBox x:Name="GlobalFlipflopNodeListbox" BorderThickness="0" ItemContainerStyle="{StaticResource ListItemNullFocusContainerStyle}"></ListBox>
+        </StackPanel>
+
+        <!--<StackPanel Grid.Row="2">
+            <TextBlock Text="无业游民"/>
+            <ListBox x:Name="UnreachableNodeListbox" BorderThickness="0" ItemContainerStyle="{StaticResource ListItemNullFocusContainerStyle}"></ListBox>
+        </StackPanel>-->
+    </Grid>
+</UserControl>