Usage of bools for sets

[caldempsey]

Hi all.

I noticed you are using bools for your sets. Generally when creating sets in Golang, as far as I am familiar, it is more efficient to declare types of map[stirng]struct{} to shave off the bytes used to implement Bool. I really have enjoyed some of the approaches used in this library and it helped me make some progress in creating map reduce semantics for my own types.

[caldempsey]

See https://github.com/golang-collections/collections/blob/master/set/set.go for some considerable idioms

[logic-building]

thank you for your comment. I will update the logic in future release.