Update supported node.js version

[xf-]

Support includes v9.x, but no v10.x

Console message:

error CodiMD@1.2.1: The engine "node" is incompatible with this module. Expected version ">=6.x <10.x". Got "10.11.0"

https://github.com/nodejs/Release
Node.js LTS 10.x starts in October and i saw no PR to change compatible version

[SISheogorath]

We explicitly set the version <10 because version 10 broke scrypt (and iirc also uws which is replaced now).

Since scrypt didn't get an update since 2 years, I don't expect that to be fixed magically, when node didn't suddenly decide to revert their API changes.

[xf-]

i added it only max to the min Nodejs information in README - no code.
Avoiding next time to install v10 and stick with v8 or v9.

A fork provides v10 support (most active one)
https://github.com/ml1nk/node-scrypt
https://www.npmjs.com/package/@mlink/scrypt

[SISheogorath]

Oh just saw that you edit the readme, thought you edit the package.json.

We are aware of node-scrypt. It just needed some work (which now waits for a PR) because node-scrypt and the scrypt package we used, are not compatible in their output formats.

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Apart from that, please fix the DCO and we can merge your PR :)

[xf-]

ok - i just patched it via web edit foo

[ccoenen]

I started replacing scrypt, but most alternatives can't be synchronous, and the place where it's used needs it to be synchronous (limitation of Sequelize).
ccoenen@2c84b51

with node10 this wouldn't be a problem, AFAIK it has a sync version of scrypt.