Upgrade to latest Jekyll and use seo plugin

Author: fniephaus

.gitignore

@@ -1,4 +1,6 @@
 _site
 .sass-cache
 .jekyll-metadata
-*.lock
+*.lock
+vendor
+.bundle

Gemfile

@@ -1,8 +1,9 @@
 source 'https://rubygems.org'
 
 gem 'html-proofer', '3.0.6'
-gem 'jekyll', '~> 3.0.0'
-gem 'jekyll-redirect-from', '~> 0.9.0'
-gem 'jekyll-sitemap', '~> 0.9.0'
+gem 'github-pages', '166'
+gem 'jekyll-redirect-from', '0.12.1'
+gem 'jekyll-seo-tag', '2.3.0'
+gem 'jekyll-sitemap', '1.1.1'
 gem 'pygments.rb'
 gem 'rake'

_config.yml

@@ -1,12 +1,22 @@
 # Site settings
 title: Squeak/Smalltalk
-copyright: Squeak Projekt
+copyright: Squeak Deutschland e.V.
+url: http://squeak.de
 
 # SEO
-description: >
+author: Squeak Deutschland e.V.
+description: >-
   Squeak ist eine moderne, freie, und quelloffene Programmierumgebung
   der Smalltalk Sprache.
-author: Squeak Foundation
+twitter:
+  username: squeaksmalltalk
+logo: /static/img/squeak.png
+social:
+  name: Squeak Deutschland e.V.
+  links:
+    - https://twitter.com/squeaksmalltalk
+    - https://github.com/squeak-smalltalk
+    - https://www.linkedin.com/groups/98736
 
 collections:
   # Order matters
@@ -63,7 +73,7 @@ host: 0.0.0.0
 permalink: news/:year/:month/:day/:title/
 
 # Caching
-build_version: 1.1
+build_version: 1.2
 staticurl: static/
 
 # Build settings
@@ -74,9 +84,10 @@ markdown: kramdown
 future: true
 
 # Enable plugins
-gems:
-  - jekyll-sitemap
+plugins:
   - jekyll-redirect-from
+  - jekyll-seo-tag
+  - jekyll-sitemap
 
 include: [_pages]
 

_includes/head.html

@@ -3,8 +3,6 @@
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
-  <meta name="description" content="{{ site.description }}">
-  <meta name="author" content="{{ site.author }}">
 
   <title>{{ site.title }}{% if page.section.title %} | {{ page.section.title }}{% else %}{% if page.title %} | {{ page.title }}{% endif %}{% endif %}</title>
 
@@ -20,4 +18,6 @@
     <script src="/static/js/html5shiv.min.js"></script>
     <script src="/static/js/respond.min.js"></script>
   <![endif]-->
+
+  {% seo title=false %}
 </head>

_layouts/section.html

@@ -32,7 +32,7 @@ <h1 class="section-heading"><span>{{ page.section.title }}</span></h1>
           <span class="anchor" id="{{ row.name | slugify }}"></span>
           <h2>{{ row.name }}</h2>
             {% endif %}
-            {% assign reversedItems = row.items reversed %}
+            {% assign reversedItems = row.items | reversed %}
             {% include row.html items=reversedItems %}
           {% endfor %}
         {% else %}