need to change to pre-release version to restore CI pre-release v5.4.1 packages

Author: mythz

build/build.proj

@@ -74,11 +74,14 @@
     <MSBuild Projects="$(BuildSolutionDir)/src/ServiceStack.Redis/ServiceStack.Redis.Core.csproj"
              Targets="Build;Pack"
              Properties="Configuration=$(Configuration)" />
-
+    
     <ItemGroup>
       <NugetPackagesToMove Include="$(BuildSolutionDir)/src/**/bin/$(Configuration)/*.nupkg"/>
     </ItemGroup>
     <Move SourceFiles="@(NugetPackagesToMove)" DestinationFolder="$(NuGetPackageDir)" />
 
+    <!-- leave .sln in optimal state then NuGet restore .sln to build -->
+    <CallTarget Targets="ClearNuGetRestoreCaches" />
+
   </Target>
 </Project>

src/Directory.Build.props

@@ -1,7 +1,7 @@
 <Project>
 
   <PropertyGroup>
-    <Version>5.0.0</Version>
+    <Version>5.4.1</Version>
     <Authors>ServiceStack</Authors>
     <Company>ServiceStack, Inc.</Company>
     <Copyright>&#169; 2008-2018 ServiceStack, Inc</Copyright>