Promise.when for Array<Promise<Void>>
Merge pull request #82 from hariseldon78/master

Promise.when for Array<Promise<Void>>
Fixed variable name in Swift example in README
add missing function invocation in code sample
Merge pull request #85 from pocketpixels/master

Fixed variable name in Swift example in README
Merge pull request #86 from benjamingr/patch-1

add missing function invocation in code sample