Hi All Have any one try launch dev/run-tests on Windows? I face some issues
1. `which` function didn't support file check without extension, like
"java" vs "java.exe", "R" vs "R.exe".
2. Get error below in `run_cmd` function, major issues is some script file
failed run in windows.
WindowsError: [Error 193] %1 is not a valid Win32 application
Thanks
Wenpei.
