Backported master updates to Alpha, did some dependency upgrade chores

[pascalopitz]

• Backported the master changes
• Upgraded mocha to latest
• Upgraded nock to latest
• Upgraded standard to latest
• Ran standard with --fix
• Fixed remaining new lint errors

[svrooij]

@pascalopitz sorry for this mess, after fixing all those bugs yesterday I realized that you had a lot of big changes in the alpha branch.....

@bencevans how do you feel with the migration to ES5 classes?

[github-actions[bot]]

:tada: This PR is included in version 1.15.0-alpha.2 :tada:

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot :package::rocket:

[bencevans]

Pro ES5 Classes