whereami 1.0 (new formula)

whereami is a command line tool to obtain your location (as a latitude, longitude pair)
I'm not sure how to declare a dependency on swift (in addition to making it depend on Mac OS X 10.0), or even if it is needed; suggestions are welcome
I can't test proper support for swift there, I've heard conflicting reports. Xcode 6.1 doesn't work too well even for ObjC projects, so I thought I'd rather be strict