Loris: [install centOS] need to update instruction on node npm install

[ycAbout]

Following guide line by line:
https://github.com/aces/Loris/blob/22.0-release/README.CentOS7.md
When running line:
sudo yum install nodejs

afterwards, check node --version shows v6.17.1

But LORIS needs:
NodeJS 8.0 or higher

npm the same thing.

Test environment:
Virtualbox 6.08
CentOS 7

[johnsaigle]

Seems to be fixed on 22.0-release:
https://github.com/aces/Loris/blob/22.0-release/README.CentOS7.md#system-requirements---install-dependencies
The changes should be reflected on major/master when the release goes out (probably tomorrow)

[ycAbout]

no @johnsaigle
See the section titled with Nodejs.

[johnsaigle]

Sorry about that.

@maltheism Can you comment on this since you recently went through the install process for CentOS?

[maltheism]

@coreyAbout @johnsaigle I didn't run into into an issue when using the sudo yum install nodejs command but it does indeed show v6.17.1 now that I look. Basically, nothing complained about nodejs being v6.17.1 and didn't realize the instructions reference v8. I did get LORIS working on v6.17.1.

If Nodejs needs to be a higher version, we could do this:

$ curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -
$ sudo yum install -y nodejs

and is advised here.

[ycAbout]

I think we can just update the documents, it should be fine.

[johnsaigle]

I think the reason v8 is required is because webpack has issues building with older versions.

I think it would be good to update the documentation.

[ridz1208]

@maltheism could you do the changes