Fixes#1913
* Drops node 4
* update node engine to >=6 (#2035)
* syncs changes to spacing across different editorconfigs
* adds eslint with minimally invasive configuration- basically moving from 4 to 2 spaces.
* Update Dev Dependencies
mocha, modernizr, gulp-autoprefixer updates.
The build tests run fine with no changes. The dist CSS is different as the PR from 2025 didn't include changes in the dist dir.
* Update Normalize
This PR solves [issue 1985: macOS - VoiceOver / Chrome announcing visually hidden text out of order](https://github.com/h5bp/html5-boilerplate/issues/1985)
By removing the negative margin, and setting it to `margin: 0;`, the issue is resolved.
Add a SUPPORT file to the .github/ folder directing folks to Stack Overflow if they have a general question about using H5BP. A link to this file will now display when someone opens a new issue which could cut down on new issues being opened unnecessarily. I realise the content in this file could have overlap in the existing ISSUE_TEMPLATE.md file but I think it'd be worth adding.
Chrome Web Store are no longer accepting submissions for web apps (Windows, Mac or Linux) so this section is no longer needed. Users can use W3C Manifest file instead to allow for users to install their webapps.
> As of 21 November 2016, all newly published packaged or hosted apps are restricted to Chrome OS, and are not available to users on Windows, Mac or Linux. Existing apps will continue to be available on all major platforms and will continue to receive updates
REF: https://blog.chromium.org/2016/08/from-chrome-apps-to-web.html
- HTTPS links to example.com (I know it's only an example but good to encourage always using HTTPS for everything)
- Fix Markdown issue with iOS web apps code not displaying.
- Remove section incorrectly stating that 'Screen readers currently have less-than-stellar support for HTML5'. The JavaScript polyfill is largely unnecessary and hasn't been updated for 4 years.
- Rename filename reference for apple-touch-icon to be icon.png to match what is used by H5BP
- Remove the no-longer-exists Firefox OS from list of browsers which support `theme-color` (Firefox browser does not support theme-color at this time)
- Updated file tree with relevant additions, filename changes and
alphabetized
- Mention that browserconfig.xml is relevant for Edge (as well as IE11)
- Remove very old link with favicon.psd. It is deprecated and doesn't
have any of the recent iPhones app sizes.
