Make appveyor test point to current version, instead of version from branch dev

Author: vors

appveyor.yml

@@ -5,7 +5,8 @@ install:
   - ps: write-output "installing Sublime%20Text%20Build%203059%20x64.zip"
   - ps: 7z.exe x "Sublime%20Text%20Build%203059%20x64.zip" -o"C:\st" > $null
   - ps: mkdir "C:\st\Data\Packages" -force > $null
-  - ps: git clone -q --branch=dev https://github.com/SublimeText/PowerShell.git "C:\st\Data\Packages\PowerShell"
+  - ps: mkdir "C:\st\Data\Packages\PowerShell" -force > $null
+  - ps: cp -Recurse * "C:\st\Data\Packages\PowerShell" -Force
   - ps: git clone -q --branch=master https://github.com/my-personal-forks/UnitTesting.git "C:\st\Data\Packages\UnitTesting"
 
 build: false