Add winrm integration tests for raw, script and ping modules.

test/integration/roles/test_win_script/files/test_script.bat

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+@ECHO OFF
+ECHO We can even run a batch file!

test/integration/roles/test_win_script/files/test_script.ps1

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+# Test script to make sure the Ansible script module works.
+Write-Host "Woohoo! We can run a PowerShell script via Ansible!"

test/integration/roles/test_win_script/files/test_script_with_args.ps1

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+# Test script to make sure the Ansible script module works when arguments are
+# passed to the script.
+
+foreach ($i in $args)
+{
+    Write-Host $i;
+}

test/integration/roles/test_win_script/files/test_script_with_errors.ps1

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+# http://stackoverflow.com/questions/9948517/how-to-stop-a-powershell-script-on-the-first-error
+#$ErrorActionPreference = "Stop";
+# http://stackoverflow.com/questions/15777492/why-are-my-powershell-exit-codes-always-0
+
+trap
+{
+    Write-Error -ErrorRecord $_
+    exit 1;
+}
+
+throw "Oh noes I has an error"