This fixes two distinct but related problems with the NTFSSecurity support implementation in generated PowerShell scripts.
This should probably be marked high priority as it may well affect PowerShell users who do not have NTFSSecurity installed on their machines.
If you require a build of this prior to it being merged, please let me know so that I can make one available for you - alternatively you can compile your own by checking out the code and running go get; go build on a Windows machine with Go 1.4+ installed.