Update packaging

Author: Krzysztof-Cieslak

.gitignore

@@ -397,3 +397,4 @@ packages/
 _public
 temp/
 _bin
+release.cmd

.paket/Paket.Restore.targets

@@ -252,7 +252,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <_NuspecFiles Include="$(AdjustedNuspecOutputPath)\*.$(PackageVersion).nuspec"/>
+      <_NuspecFiles Include="$(AdjustedNuspecOutputPath)\*.nuspec"/>
     </ItemGroup>
 
     <Exec Command='$(PaketCommand) fix-nuspecs files "@(_NuspecFiles)" project-file "$(PaketProjectFile)" ' Condition="@(_NuspecFiles) != ''" />

build.fsx

@@ -125,7 +125,7 @@ Target.create "Pack" (fun _ ->
     Environment.setEnvironVar "PackageReleaseNotes" (release.Notes |> String.toLines)
     Environment.setEnvironVar "PackageTags" "f#, site-generator, html"
     Environment.setEnvironVar "PackageProjectUrl" "https://github.com/LambdaFactory/Fornax"
-    Environment.setEnvironVar "PackageLicenseUrl" "https://raw.githubusercontent.com/LambdaFactory/Fornax/master/LICENSE.txt"
+    Environment.setEnvironVar "PackageLicenseExpression" "MIT"
 
     DotNet.pack (fun p ->
         { p with

global.json

@@ -0,0 +1,6 @@
+
+{
+    "sdk": {
+      "version": "2.2.401"
+    }
+  }