Update to latest GitHub Pages versions.

Gemfile.lock

@@ -2,54 +2,113 @@ GEM
   remote: http://rubygems.org/
   specs:
     RedCloth (4.2.9)
-    classifier (1.3.3)
-      fast-stemmer (>= 1.0.0)
+    activesupport (4.1.6)
+      i18n (~> 0.6, >= 0.6.9)
+      json (~> 1.7, >= 1.7.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.1)
+      tzinfo (~> 1.1)
+    blankslate (2.1.2.4)
+    celluloid (0.16.0)
+      timers (~> 4.0.0)
+    classifier-reborn (2.0.1)
+      fast-stemmer (~> 1.0)
+    coffee-script (2.3.0)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.8.0)
     colorator (0.1)
-    commander (4.1.5)
-      highline (~> 1.6.11)
+    execjs (2.2.1)
     fast-stemmer (1.0.2)
     ffi (1.9.3)
-    github-pages (10)
+    gemoji (2.1.0)
+    github-pages (27)
       RedCloth (= 4.2.9)
-      jekyll (= 1.3.0)
-      kramdown (= 1.2.0)
-      liquid (= 2.5.4)
-      maruku (= 0.6.1)
+      jekyll (= 2.3.0)
+      jekyll-coffeescript (= 1.0.0)
+      jekyll-mentions (= 0.1.3)
+      jekyll-redirect-from (= 0.6.2)
+      jekyll-sass-converter (= 1.2.0)
+      jekyll-sitemap (= 0.6.0)
+      jemoji (= 0.3.0)
+      kramdown (= 1.3.1)
+      liquid (= 2.6.1)
+      maruku (= 0.7.0)
+      pygments.rb (= 0.6.0)
       rdiscount (= 2.1.7)
-      redcarpet (= 2.3.0)
-    highline (1.6.20)
-    jekyll (1.3.0)
-      classifier (~> 1.3)
+      redcarpet (= 3.1.2)
+    hitimes (1.2.2)
+    html-pipeline (1.9.0)
+      activesupport (>= 2)
+      nokogiri (~> 1.4)
+    i18n (0.6.11)
+    jekyll (2.3.0)
+      classifier-reborn (~> 2.0)
       colorator (~> 0.1)
-      commander (~> 4.1.3)
-      liquid (~> 2.5.2)
-      listen (~> 1.3)
-      maruku (~> 0.6.0)
-      pygments.rb (~> 0.5.0)
-      redcarpet (~> 2.3.0)
-      safe_yaml (~> 0.9.7)
-    kramdown (1.2.0)
-    liquid (2.5.4)
-    listen (1.3.1)
+      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)
+      mercenary (~> 0.3.3)
+      pygments.rb (~> 0.6.0)
+      redcarpet (~> 3.1)
+      safe_yaml (~> 1.0)
+      toml (~> 0.1.0)
+    jekyll-coffeescript (1.0.0)
+      coffee-script (~> 2.2)
+    jekyll-gist (1.1.0)
+    jekyll-mentions (0.1.3)
+      html-pipeline (~> 1.9.0)
+      jekyll (~> 2.0)
+    jekyll-paginate (1.0.0)
+    jekyll-redirect-from (0.6.2)
+      jekyll (~> 2.0)
+    jekyll-sass-converter (1.2.0)
+      sass (~> 3.2)
+    jekyll-sitemap (0.6.0)
+    jekyll-watch (1.1.1)
+      listen (~> 2.7)
+    jemoji (0.3.0)
+      gemoji (~> 2.0)
+      html-pipeline (~> 1.9)
+      jekyll (~> 2.0)
+    json (1.8.1)
+    kramdown (1.3.1)
+    liquid (2.6.1)
+    listen (2.7.9)
+      celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
-      rb-kqueue (>= 0.2)
-    maruku (0.6.1)
-      syntax (>= 1.0.0)
-    posix-spawn (0.3.6)
-    pygments.rb (0.5.4)
+    maruku (0.7.0)
+    mercenary (0.3.4)
+    mini_portile (0.6.0)
+    minitest (5.4.1)
+    nokogiri (1.6.3.1)
+      mini_portile (= 0.6.0)
+    parslet (1.5.0)
+      blankslate (~> 2.0)
+    posix-spawn (0.3.9)
+    pygments.rb (0.6.0)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
-    rb-fsevent (0.9.3)
-    rb-inotify (0.9.2)
-      ffi (>= 0.5.0)
-    rb-kqueue (0.2.0)
+    rb-fsevent (0.9.4)
+    rb-inotify (0.9.5)
       ffi (>= 0.5.0)
     rdiscount (2.1.7)
-    redcarpet (2.3.0)
-    safe_yaml (0.9.7)
+    redcarpet (3.1.2)
+    safe_yaml (1.0.3)
+    sass (3.4.4)
     stringex (1.4.0)
-    syntax (1.0.0)
+    thread_safe (0.3.4)
+    timers (4.0.1)
+      hitimes
+    toml (0.1.1)
+      parslet (~> 1.5.0)
+    tzinfo (1.2.2)
+      thread_safe (~> 0.1)
     yajl-ruby (1.1.0)
 
 PLATFORMS