fix(commands): support prereleases of Node.js

[targos]

Prereleases of Node.js such as nightly or canary releases have a
prerelease tag. Their version strings are valid semver but
semver.satisfies does not return true when compared to a regular version
number.

Refs: https://www.npmjs.com/package/semver#prerelease-tags

Types of changes

What types of changes does your code introduce?

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• I have read the CONTRIBUTING doc
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works.
• I have added necessary documentation (if appropriate)

Further comments

I wanted to give Adonis a try, but got blocked when I tried to create my first project:

adonis new adonis-playground
   ERROR  Unsatisfied Node.js version v11.0.0-v8-canary20180727953d5c257c. Please update Node.js to >=8.0.0 before you continue

[coveralls]

Coverage remained the same at 48.342% when pulling 4525cc5 on targos:support-node-pre into f6ec54c on adonisjs:develop.

[thetutlage]

Ahh this makes sense. Thanks for contributing 😄

[thetutlage]

Released as 4.0.6

[targos]

Thank you!