Changed a build.ps1 and build.sh files

Author: Taritsyn

build.ps1

@@ -33,7 +33,7 @@ cd $PSScriptRoot
 $repoFolder = $PSScriptRoot
 $env:REPO_FOLDER = $repoFolder
 
-$koreBuildZip="https://github.com/aspnet/KoreBuild/archive/02bd945d32558d24c1e5c6b74e37d44585ad9691.zip"
+$koreBuildZip="https://codeload.github.com/aspnet/KoreBuild/zip/02bd945d32558d24c1e5c6b74e37d44585ad9691"
 if ($env:KOREBUILD_ZIP)
 {
     $koreBuildZip=$env:KOREBUILD_ZIP

build.sh

@@ -13,7 +13,7 @@ if test ! -d $packageDir/NUnit.Runners; then
   mono $localNugetPackageManager install NUnit.Runners -Version 3.4.1 -O $packageDir% -ExcludeVersion -NoCache
 fi
 
-koreBuildZip="https://github.com/aspnet/KoreBuild/archive/02bd945d32558d24c1e5c6b74e37d44585ad9691.zip"
+koreBuildZip="https://codeload.github.com/aspnet/KoreBuild/zip/02bd945d32558d24c1e5c6b74e37d44585ad9691"
 if [ ! -z $KOREBUILD_ZIP ]; then
     koreBuildZip=$KOREBUILD_ZIP
 fi