avoid dropping deps file when publishing

also, avoid requiring a dependency on Microsoft.NETCore.Runtime

fixes #157

scripts/dev-dotnet.ps1

@@ -0,0 +1,14 @@
+$oldPath = $env:PATH
+try {
+    # Put the stage2 output on the front of the path
+    $stage2 = "$PSScriptRoot\..\artifacts\win7-x64\stage2\bin"
+    if (Test-Path $stage2) {
+        $env:PATH="$stage2;$env:PATH"
+    } else {
+        Write-Host "You don't have a dev build in the 'artifacts\win7-x64\stage2' folder!"
+    }
+
+    dotnet @args
+} finally {
+    $env:PATH = $oldPath
+}