bump to v5.12

Author: mythz

src/Directory.Build.props

@@ -1,7 +1,7 @@
 <Project>
 
   <PropertyGroup>
-    <Version>5.11.1</Version>
+    <Version>5.12.0</Version>
     <Authors>ServiceStack</Authors>
     <Company>ServiceStack, Inc.</Company>
     <Copyright>&#169; 2008-2018 ServiceStack, Inc</Copyright>

src/ServiceStack.Admin/ServiceStack.Admin.Source.csproj

@@ -36,7 +36,7 @@
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
     <PackageReference Include="System.Collections.Specialized" Version="4.3.0" />
-    <PackageReference Include="System.ServiceModel.Primitives" Version="4.7.0" />
+    <PackageReference Include="System.ServiceModel.Primitives" Version="4.8.1" />
     <PackageReference Include="System.Xml.XmlSerializer" Version="4.3.0" />
     <PackageReference Include="System.Runtime.Serialization.Primitives" Version="4.3.0" />
     <PackageReference Include="System.Linq.Queryable" Version="4.3.0" />

tests/Directory.Build.props

@@ -1,7 +1,7 @@
 <Project>
 
   <PropertyGroup>
-    <Version>5.11.1</Version>
+    <Version>5.12.0</Version>
     <LangVersion>latest</LangVersion>
     <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
   </PropertyGroup>