If a PowerShell test script throughs an exception, the Receive-Job displays the exception text on the console.  This appears as though the Receive-Job through the exception.  This change prevents the exception text from appearing on the console.
Added support for multiple setup scripts. Removed an invalid state transition. DoRunSetupScript now honors te test case OnError attribute. Removed duplicate logging in RunPSScript.
Merge pull request #84 from nickme/master

If a PowerShell test script throws an exception, the Receive-Job displ...