Update eslint-plugin-jsx-a11y to the latest version 🚀#18

misund merged 2 commits intomastermisund/get-best-contrast-color:masterfrom

greenkeeper/eslint-plugin-jsx-a11y-6.1.2misund/get-best-contrast-color:greenkeeper/eslint-plugin-jsx-a11y-6.1.2Copy head branch name to clipboard