Share Set.xcscheme
Merge pull request #10 from sharplet/carthage

Carthage support
Bump the project version.
Bump the short version string.
Merge branch 'master' of https://github.com/robrix/Set into flatmap
Replace incorrect "/c" in doc comments with "\c"
s/flatmap/flatMap
flatMap's transform is now generic over any sequence
Favour reduce() over imperative style
Use tacit style