Fix Pop-Location usage

bootstrap.ps1

@@ -1,6 +1,8 @@
 $run_path = Get-Location
 
-Push-Location C:/SWTools
+$swtools = C:/SWTools
+
+Push-Location $swtools
 
 if (Get-Command "./python/python.exe" -ErrorAction SilentlyContinue) {
     echo "Python already installed."
@@ -17,7 +19,9 @@ if (Get-Command "./python/python.exe" -ErrorAction SilentlyContinue) {
     mkdir python
     Push-Location python
     tar -xf ../python.zip
-    Pop-Location python
+    Pop-Location
 }
 
-./python/python.exe $run_path/main.py $run_path
+Pop-Location
+
+$swtools/python/python.exe main.py $run_path