Make DiagnosticsSource ref assembly consistent

The DiagnosticsSource ref didn't have all the same
target frameworks as the implementation so that was fixed.

It should be noted that the ref assemblies aren't currently
included in the package only the libs are but it is good to keep
them consistent as our testing does use them.

Author: weshaggard

src/System.Diagnostics.DiagnosticSource/ref/Configurations.props

@@ -2,7 +2,8 @@
 <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <PackageConfigurations>
-      netstandard1.0;
+      netstandard1.1;
+      netstandard1.3;
       net45;
     </PackageConfigurations>
     <BuildConfigurations>

src/System.Diagnostics.DiagnosticSource/ref/System.Diagnostics.DiagnosticSource.csproj

@@ -13,18 +13,20 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netfx-Release|AnyCPU'" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard-Debug|AnyCPU'" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard-Release|AnyCPU'" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard1.0-Debug|AnyCPU'" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard1.0-Release|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard1.1-Debug|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard1.1-Release|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard1.3-Debug|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard1.3-Release|AnyCPU'" />
   <ItemGroup>
     <Compile Include="System.Diagnostics.DiagnosticSource.cs" />
   </ItemGroup>
-  <ItemGroup Condition="'$(TargetGroup)' != 'netstandard1.0'">
+  <ItemGroup Condition="'$(TargetGroup)' != 'netstandard1.1'">
     <Compile Include="System.Diagnostics.DiagnosticSourceActivity.cs" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetGroup)' == 'net45' OR '$(TargetGroup)' == 'netfx'">
     <Reference Include="mscorlib" />
   </ItemGroup>
-  <ItemGroup Condition="'$(TargetGroup)' == 'netstandard1.0'">
+  <ItemGroup Condition="'$(TargetGroup)' == 'netstandard1.1' or '$(TargetGroup)' == 'netstandard1.3'">
     <Reference Include="System.Runtime" />
   </ItemGroup>
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />