Log Message:
www/ruby-jekyll-archives: update to 2.2.1

Update ruby-jekyll-archives to 2.2.1.

2.2.1 (2019-03-23)

Minor Enhancements

* Make Archive subclass of Page (#67)
* Don't limit slugs/title to strings (#41)
* Enable incremental operation (#58)
* Remove deprecated defs (#89)

Development Fixes

* Target Ruby 2.3
* Allow testing and using with Jekyll 4.x (#133)
* Update Travis config and Gemfile for Ruby < 2.2.2 support (#68)
* Consolidate History file to work with jekyllbot (#80)
* Remove Travis test for Ruby 1.9 (#87)
* Inherit Jekyll's rubocop config for consistency (#65)
* Bump travis ruby versions (#91)
* Fix Travis build error (#93)
* Define path with dir (#105)
* Appease Rubocop (#104)
* update Rubocop and Travis config (#110)
* Update .travis.yml (#111)
* Modernize tests & linting (#114)
* Test against Ruby 2.5 (#118)
* Lint with rubocop-jekyll (#128)

Documentation

* Update Installation Guide (#116)
* docs/configuration: GitHub table display was messed up (#96)
* Small updates for consistency across document (#130)