mas option of safari build

scripts/safari-build.ps1

@@ -1,5 +1,6 @@
 param (
-    [string] $version
+    [string] $version,
+    [switch] $mas
 )
 
 # Dependencies:
@@ -12,7 +13,10 @@ $dir = Split-Path -Parent $MyInvocation.MyCommand.Path;
 $rootDir = $dir + "\..";
 $distDir = $rootDir + "\dist";
 $distSafariDir = $distDir + "\safari";
-$distSafariAppex = $distSafariDir + "\browser\dist\Safari\build\Release\safari.appex";
+$distSafariAppex = $distSafariDir + "\browser\dist\Safari\dmg\build\Release\safari.appex";
+if($mas) {
+  $distSafariAppex = $distSafariDir + "\browser\dist\Safari\mas\build\Release\safari.appex";
+}
 $pluginsAppex = $rootDir + "\PlugIns\safari.appex";
 
 if(Test-Path -Path $distSafariDir) {