Damian Fiałkiewicz

Can we remove old a11y tools/styles? I mean `gulp a11y` task from `gulpfile.js`, `_a11y-tests.hbs`, `docs/styles/a11y-tests/_a11y-tests.scss` and maybe somewhere else if they're not used anymore.

> * using the npm lib installed with yarn instead of min js script loaded in preview. I'm didn't find an easy way to use npm package on template level...

>- different set of rule for global/elements/modules and views (some rules with concern whole page only, like heading one or `` landmark. To set a custom rules for specific components...