Getting this to work in Windows as well.

Just a path-separator tweak
No, that wasn't the sort of thing I was talking about.  It was some Node module that given a full path (for the current OS)  as a string could give you back things like file extension, plain filename, etc.

But it's not that important at the moment.  I'd much rather merge this now and come back at that later if we deem it important.