* Pulls common code up from several methods into #open_sc_manager
* Deprecates the name Windows::WindowsServices in favor of
Windows::Services. The platform is already clear from the namespace.
* Makes the post/test/services test module actually work
[See #1007]
[See #1012]
Change all Platform 'windows' to 'win', as it internally is an alias
anyway and only causes unnecessary confusion to have two platform names
that mean the same.