Prepare project for a new life as a Sinon.JS project

[mroderick]

Code

• Configure mocha and referee
• Port tests to mocha
• Use nyc for test coverage
• Add .editorconfig
• ESLint
  • Use eslint-config-sinon
  • Use eslint-plugin-ie11
  • Use eslint-plugin-mocha
  • Use lint-staged and husky for pre-commit hook
• Verify all Sinon assertions mapped (Verify that all sinon assertions are mapped #8)

Third party services

• Run tests in node LTS versions (4, 6, 8) on Travis
• Push coverage report to coveralls
• Configure bithound.io for repository

Repository

• Add usage instructions to README.md
• Add CONTRIBUTING.md
• Add pull request template
• Add new issue template
• Add .github/stale.yml and create pinned and stale labels
• Protect master branch from force pushes, including for administrators

NPM

• Add files directive to filter out files that package consumers would not want (Add files directive to package.json to control what goes to npm #10)
• Publish module under @sinonjs scope with a new version
• Deprecate old package on npm (@mroderick can do this)

[mroderick]