Minor Enhancements

• Remove excluded static files from the sitemap (#166)
• filter/replace static index.html paths to permalink (#170)

Development Fixes

• Condition the static file tests on Jekyll 3.4.2 and above (#167)
• Update versions for Travis (#174)
• Fix Travis Deploy (#173)
• Test against Jekyll 3.4.x and latest 3.x (#177)
• Define path with dir (#186)
• Style: Rubocop auto-correct (#195)
• Test against Ruby 2.5 (#201)

Documentation

• Add note about use with Github Pages gem (#179)
• Fix a couple of typos (#184)
• Use plugins instead of gems in README config (#185)
• Docs: set site.url in config (#172)