Bundled updates (#664)
- Unpin Listen
- Unpin activesupport
- Update minima to v2.5.1
- Update jekyll-theme-primer to v0.5.4
- Update jekyll-swiss to v1.0.0
- Update jekyll-titles-from-headings to v0.5.3
- Update jekyll-readme-index to v0.3.0
- Update jekyll-optional-front-matter to v0.3.2
- Update jekyll-relative-links to v0.6.1
- Update jekyll-mentions to v1.5.1
- Update jemoji to 0.11.1
- Update jekyll-remote-theme to v0.4.1
- Update jekyll-avatar to v0.7.0
- Update jekyll-seo-tag to v2.6.1
- Update jekyll-feed to v0.13.0
- Update jekyll-sitemap to v1.4.0
- Update jekyll-redirect-from to v0.15.0
- Update rouge to v3.13.0
- Update liquid to v4.0.3