* Remove .travis.yml reference from .gitattributes
* Minor refactoring of .svglintrc.js
- Remove unused variables
- Fix missing semi-colons
- Remove unneeded indentation
* Prevent error in clean command due to missing files
* Fix indentations
* Further improvements to Editorconfig and indentation
* Format YAML files
- Update indentation for array notation
- Normalize use of newlines
* Formalize website Ruby dependencies and installation process
* Improve Contributing Guidelines
* Add Gemfile.lock to .gitattributes
* Use 'ruby/setup-ruby' caching strategy
* Add link to documentation of 'bundler-cache'
