Deficiencies of New-InstallerShortcut cmdlet

[banyula]

Module 5.4.1 also introduced a bug when creating a shortcut because when the executing script is a PS1, the Target was converted to “powershell.exe” and hence the shortcut was not being created. In order to make it work, I manually changed the above string to [POWERSHELL] so it would use the Property already set in the WXS.