Point to GitHub releases for pre-built bindings

[sgtcoolguy]

Relates to #66, #67

This points at Github releases URLs for this repo to hold the pre-built binaries. It required modifying the download-all script to support handling 301/302 redirects.

This allows us to stop storing bindings in our s3 bucket and instead place formal releases with the bindings.

[ewanharris]

Jenkins error looks to be related to nodejs/node-gyp/issues/1917, I'm guessing as this uses yarn there's an older npm/node-gyp on the box.

Testing this by requiring the module without the binding would always fallback to building for me, after some debugging the request from node-pre-gyp was erroring with Request error Error: Remote end closed socket abruptly. (but only when required, not when running the command myself).

However, after upgrading to @mapbox/node-prep-gyp that request works just fine. So maybe this PR + that upgrade should be enough to get us to pulling from GitHub?

[ewanharris]

Filed cb1kenobi/node-pre-gyp-init/pull/2 to update node-pre-gyp-init to use the mapbox scoped module, once that is merged/published we can update node-pre-gyp-init and node-pre-gyp in this PR and we should be good to go

[ewanharris]

I can repro the error locally, it looks to be an issue when building for Node.js 0.10.X with Python 3, every other version builds fine. Given #68 I don't think it's worth trying to find a workaround to get it building

@sgtcoolguy, @cb1kenobi if ya'll are happy the additions I made to his PR fancy dropping a LGTM?

[drauggres]

Hi. The README.md still mentions AWS: https://github.com/appcelerator/node-ios-device/tree/1_X#publishing

[ewanharris]

Thanks @drauggres I've fixed that in #74