Build for node 4.3

[copypastedeveloper]

AWS is suggesting running node 4.3 for node endpoints, but this version of canvas will only work with 0.10. If nothing else, perhaps specifying the runtime in the readme.md file would be helpful. Thanks for putting this example together though. Super helpful!

[yeldarby]

If anyone else is having this issue now that AWS has deprecated 0.10 and you can't use it for new functions anymore you may want to look here; it works on 4.3: https://github.com/anandanand84/aws-lambda-node-canvas

(although I have noticed the filesize is much larger)

[tomasdev]

are you guys talking about Module did not self-register ?

[yeldarby]

@tomasdev - yeah

[willbamford]

Hi all, sorry - missed this thread somehow. I'll put something in the README.