Fix defunct nuget reference

Author: davetransom

CSharpVitamins.Tabulation.sln

@@ -11,6 +11,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 	ProjectSection(SolutionItems) = preProject
 		.gitattributes = .gitattributes
 		.gitignore = .gitignore
+		build\build.ps1 = build\build.ps1
 		LICENSE.md = LICENSE.md
 		readme.md = readme.md
 	EndProjectSection

CSharpVitamins.Tabulation/.nuget/nuget.config

@@ -10,7 +10,7 @@ if ($semver) {
 
     Write-Host "> pack '$semver'..."
 
-    & .\.nuget\nuget.exe pack -version $semver -prop Configuration=Release -verbosity detailed -symbol -outputdirectory ..\build\
+    & nuget.exe pack -version $semver -prop Configuration=Release -verbosity detailed -symbol -outputdirectory ..\build\
 
     if ($?) {
         $packaged = $true;
@@ -38,7 +38,7 @@ if ($packaged) {
 
         Write-Host "> pushing '$semver' to nuget..."
 
-        & .\.nuget\nuget.exe push ..\build\CSharpVitamins.Tabulation.$semver.*.nupkg
+        & nuget.exe push ..\build\CSharpVitamins.Tabulation.$semver.*.nupkg
 
         if ($?) {
             Write-Host "> pushed okay" -ForegroundColor Green
@@ -52,4 +52,4 @@ if ($packaged) {
 
 }
 
-Write-Host "finito!"
+Write-Host "finito!"