- Bash-style Unix redirects failing on Windows were causing these tests to never run.
- Fix the tests to current Win32 library: Win32::Service::Error -> SystemCallError.
Pull the Win32::Service setup/teardown stuff into a shared context.
Modify WindowsServiceManager to create a service with a username and password to run as, if given.
Logon-as-service functional spec, breaks because you can't use programmatically created users for this.