Merge pull request #644 from davidhenley/patch-1

Update Microsoft.Xaml.Behaviors.Wpf to target .NET Core

Author: nigel-sampson

src/Caliburn.Micro.Platform/Caliburn.Micro.Platform.csproj

@@ -23,7 +23,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net45'">
-    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version=" 1.0.1" />
+    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version=" 1.1.3" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
     <Reference Include="System.Xaml" />