Debug AppVeyor [travis skip]

Author: sergeyklay

.appveyor.yml

@@ -73,7 +73,7 @@ init:
 
 install:
   - ps: (new-object Net.WebClient).DownloadString($Env:PHP_AVM) | iex
-
+  - ps: $ErrorActionPreference = "Continue";
   - ps: InstallPhpSdk     $Env:PHP_SDK_VERSION $Env:VC_VERSION $Env:PLATFORM
   - ps: InstallPhp        $Env:PHP_VERSION $Env:BUILD_TYPE $Env:VC_VERSION $Env:PLATFORM
   - ps: InstallPhpDevPack $Env:PHP_VERSION $Env:BUILD_TYPE $Env:VC_VERSION $Env:PLATFORM