Update To Swift 3.0

[the-freshlord]

Hi, will there be an update to Swift 3.0?

[cmbasnett]

If you do this, please provide a release that works for Swift 2.x, plenty of people are still using it!

[yuchenglin]

Waiting for swift 3.0 support too

[RafaelPlantard]

The version to Swift 3.0 is ready at master, but it's better to everyone that @pjocprac update release tag to 0.4.0.

[fidmor89]

Will there be an update to swift 4.x ?