Fix windows build script

src/scripts/mkwinrelease.ps1

@@ -4,7 +4,7 @@ if (-not (Test-Path env:APP_VERSION)) { echo "APP_VERSION is not set. Please set
 $target="zec-qt-wallet-v$Env:APP_VERSION"
 
 echo "Git Status"
-$branch= &git branch
+$branch= &git branch | select -first 1
 if ($branch -ne "* master") {
     echo "Not on master branch!"
     exit;
@@ -35,12 +35,12 @@ Copy-Item README.md release/$target | Out-Null
 echo "Zipping"
 Compress-Archive -LiteralPath release/$target -DestinationPath "release/Windows-$target.zip"
 
-echo "Package Contents"
-[Reflection.Assembly]::LoadWithPartialName('System.IO.Compression.FileSystem')
-foreach($sourceFile in (Get-ChildItem "release/Windows-$target.zip"))
-{
-    [IO.Compression.ZipFile]::OpenRead($sourceFile.FullName).Entries.FullName |
-        %{ "$sourcefile`:$_" }
-}
+#echo "Package Contents"
+#[Reflection.Assembly]::LoadWithPartialName('System.IO.Compression.FileSystem')
+#foreach($sourceFile in (Get-ChildItem "release/Windows-$target.zip"))
+#{
+#    [IO.Compression.ZipFile]::OpenRead($sourceFile.FullName).Entries.FullName |
+#        %{ "$sourcefile`:$_" }
+#}
 
 echo "Done"