remove aulas collection in favor of using plugin

Gemfile

@@ -7,7 +7,7 @@ source "https://rubygems.org"
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-gem "jekyll", "~> 4.3.2"
+gem "jekyll"
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 # gem "minima", "~> 2.5"
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
@@ -15,21 +15,11 @@ gem "jekyll", "~> 4.3.2"
 # gem "github-pages", group: :jekyll_plugins
 # If you have any plugins, put them here!
 group :jekyll_plugins do
-  gem "jekyll-feed", "~> 0.12"
+  gem "jekyll-feed"
+  gem "jekyll-datapage-generator"
   gem "jekyll-archives"
 end
 
-
-# Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
-# and associated library.
-platforms :mingw, :x64_mingw, :mswin, :jruby do
-  gem "tzinfo", ">= 1", "< 3"
-  gem "tzinfo-data"
-end
-
-# Performance-booster for watching directories on Windows
-gem "wdm", "~> 0.1.1", :platforms => [:mingw, :x64_mingw, :mswin]
-
 # Lock `http_parser.rb` gem to `v0.6.x` on JRuby builds since newer versions of the gem
 # do not have a Java counterpart.
-gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
+# gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]