Update to github-pages v51

.gitignore

@@ -1,3 +1,2 @@
 _output
 _site
-_/site

Gemfile.lock

@@ -2,124 +2,123 @@ GEM
   remote: https://rubygems.org/
   specs:
     RedCloth (4.2.9)
-    activesupport (4.2.2)
+    activesupport (4.2.5.1)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    blankslate (2.1.2.4)
+    addressable (2.3.8)
-    celluloid (0.16.0)
-      timers (~> 4.0.0)
-    classifier-reborn (2.0.3)
-      fast-stemmer (~> 1.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
-    coffee-script-source (1.9.1.1)
+    coffee-script-source (1.10.0)
     colorator (0.1)
-    execjs (2.5.2)
+    ethon (0.8.1)
-    fast-stemmer (1.0.2)
+      ffi (>= 1.3.0)
-    ffi (1.9.8)
+    execjs (2.6.0)
+    faraday (0.9.2)
+      multipart-post (>= 1.2, < 3)
+    ffi (1.9.10)
     gemoji (2.1.0)
-    github-pages (38)
+    github-pages (51)
       RedCloth (= 4.2.9)
-      github-pages-health-check (~> 0.2)
+      github-pages-health-check (= 1.0.1)
-      jekyll (= 2.4.0)
+      jekyll (= 3.0.3)
       jekyll-coffeescript (= 1.0.1)
-      jekyll-feed (= 0.3.0)
+      jekyll-feed (= 0.4.0)
-      jekyll-mentions (= 0.2.1)
+      jekyll-gist (= 1.4.0)
-      jekyll-redirect-from (= 0.8.0)
+      jekyll-mentions (= 1.0.1)
-      jekyll-sass-converter (= 1.2.0)
+      jekyll-paginate (= 1.1.0)
-      jekyll-sitemap (= 0.8.1)
+      jekyll-redirect-from (= 0.9.1)
-      jemoji (= 0.4.0)
+      jekyll-sass-converter (= 1.3.0)
-      kramdown (= 1.5.0)
+      jekyll-seo-tag (= 1.2.0)
-      liquid (= 2.6.2)
+      jekyll-sitemap (= 0.10.0)
-      maruku (= 0.7.0)
+      jekyll-textile-converter (= 0.1.0)
+      jemoji (= 0.5.1)
+      kramdown (= 1.9.0)
+      liquid (= 3.0.6)
       mercenary (~> 0.3)
-      pygments.rb (= 0.6.3)
+      rdiscount (= 2.1.8)
-      rdiscount (= 2.1.7)
+      redcarpet (= 3.3.3)
-      redcarpet (= 3.3.1)
+      rouge (= 1.10.1)
       terminal-table (~> 1.4)
-    github-pages-health-check (0.3.1)
+    github-pages-health-check (1.0.1)
-      net-dns (~> 0.6)
+      addressable (~> 2.3)
+      net-dns (~> 0.8)
+      octokit (~> 4.0)
       public_suffix (~> 1.4)
-    hitimes (1.2.2)
+      typhoeus (~> 0.7)
-    html-pipeline (1.9.0)
+    html-pipeline (2.3.0)
-      activesupport (>= 2)
+      activesupport (>= 2, < 5)
-      nokogiri (~> 1.4)
+      nokogiri (>= 1.4)
     i18n (0.7.0)
-    jekyll (2.4.0)
+    jekyll (3.0.3)
-      classifier-reborn (~> 2.0)
       colorator (~> 0.1)
-      jekyll-coffeescript (~> 1.0)
-      jekyll-gist (~> 1.0)
-      jekyll-paginate (~> 1.0)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
       kramdown (~> 1.3)
-      liquid (~> 2.6.1)
+      liquid (~> 3.0)
       mercenary (~> 0.3.3)
-      pygments.rb (~> 0.6.0)
+      rouge (~> 1.7)
-      redcarpet (~> 3.1)
       safe_yaml (~> 1.0)
-      toml (~> 0.1.0)
     jekyll-coffeescript (1.0.1)
       coffee-script (~> 2.2)
-    jekyll-feed (0.3.0)
+    jekyll-feed (0.4.0)
-    jekyll-gist (1.2.1)
+    jekyll-gist (1.4.0)
-    jekyll-mentions (0.2.1)
+      octokit (~> 4.2)
-      html-pipeline (~> 1.9.0)
+    jekyll-mentions (1.0.1)
-      jekyll (~> 2.0)
+      html-pipeline (~> 2.3)
+      jekyll (~> 3.0)
     jekyll-paginate (1.1.0)
-    jekyll-redirect-from (0.8.0)
+    jekyll-redirect-from (0.9.1)
       jekyll (>= 2.0)
-    jekyll-sass-converter (1.2.0)
+    jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
-    jekyll-sitemap (0.8.1)
+    jekyll-seo-tag (1.2.0)
-    jekyll-watch (1.2.1)
+      jekyll (>= 2.0)
-      listen (~> 2.7)
+    jekyll-sitemap (0.10.0)
-    jemoji (0.4.0)
+    jekyll-textile-converter (0.1.0)
+      RedCloth (~> 4.0)
+    jekyll-watch (1.3.1)
+      listen (~> 3.0)
+    jemoji (0.5.1)
       gemoji (~> 2.0)
-      html-pipeline (~> 1.9)
+      html-pipeline (~> 2.2)
-      jekyll (~> 2.0)
+      jekyll (>= 2.0)
     json (1.8.3)
-    kramdown (1.5.0)
+    kramdown (1.9.0)
-    liquid (2.6.2)
+    liquid (3.0.6)
-    listen (2.10.1)
+    listen (3.0.6)
-      celluloid (~> 0.16.0)
       rb-fsevent (>= 0.9.3)
-      rb-inotify (>= 0.9)
+      rb-inotify (>= 0.9.7)
-    maruku (0.7.0)
     mercenary (0.3.5)
-    mini_portile (0.6.2)
+    mini_portile2 (2.0.0)
-    minitest (5.7.0)
+    minitest (5.8.4)
+    multipart-post (2.0.0)
     net-dns (0.8.0)
-    nokogiri (1.6.6.2)
+    nokogiri (1.6.7.2)
-      mini_portile (~> 0.6.0)
+      mini_portile2 (~> 2.0.0.rc2)
-    parslet (1.5.0)
+    octokit (4.2.0)
-      blankslate (~> 2.0)
+      sawyer (~> 0.6.0, >= 0.5.3)
-    posix-spawn (0.3.11)
+    public_suffix (1.5.3)
-    public_suffix (1.5.1)
+    rb-fsevent (0.9.7)
-    pygments.rb (0.6.3)
+    rb-inotify (0.9.7)
-      posix-spawn (~> 0.3.6)
-      yajl-ruby (~> 1.2.0)
-    rb-fsevent (0.9.5)
-    rb-inotify (0.9.5)
       ffi (>= 0.5.0)
-    rdiscount (2.1.7)
+    rdiscount (2.1.8)
-    redcarpet (3.3.1)
+    redcarpet (3.3.3)
+    rouge (1.10.1)
     safe_yaml (1.0.4)
-    sass (3.4.14)
+    sass (3.4.21)
-    terminal-table (1.4.5)
+    sawyer (0.6.0)
+      addressable (~> 2.3.5)
+      faraday (~> 0.8, < 0.10)
+    terminal-table (1.5.2)
     thread_safe (0.3.5)
-    timers (4.0.1)
+    typhoeus (0.8.0)
-      hitimes
+      ethon (>= 0.8.0)
-    toml (0.1.2)
-      parslet (~> 1.5.0)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    yajl-ruby (1.2.1)
 
 PLATFORMS
   ruby
@@ -128,4 +127,4 @@ DEPENDENCIES
   github-pages
 
 BUNDLED WITH
-   1.10.4
+   1.11.2

_config.yml

@@ -1,9 +1,4 @@
 # files
-layouts: ./_/layouts
-destination: ./_/site
-sass:
-  sass_dir: ./_/sass
-
 exclude:
   - Makefile
   - README.md