Use 'github-pages' instead of 'jekyll'

Gemfile

@@ -1,5 +1,5 @@
 source 'http://rubygems.org'
 
-gem 'jekyll'
+gem 'github-pages'
 gem 'redcarpet'
 gem 'rake'

Gemfile.lock

@@ -1,6 +1,13 @@
 GEM
   remote: http://rubygems.org/
   specs:
+    RedCloth (4.2.9)
+    activesupport (4.2.1)
+      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)
     celluloid (0.16.0)
       timers (~> 4.0.0)
@@ -14,8 +21,34 @@ GEM
     execjs (2.5.2)
     fast-stemmer (1.0.2)
     ffi (1.9.8)
+    gemoji (2.1.0)
+    github-pages (34)
+      RedCloth (= 4.2.9)
+      github-pages-health-check (~> 0.2)
+      jekyll (= 2.4.0)
+      jekyll-coffeescript (= 1.0.1)
+      jekyll-mentions (= 0.2.1)
+      jekyll-redirect-from (= 0.6.2)
+      jekyll-sass-converter (= 1.2.0)
+      jekyll-sitemap (= 0.8.1)
+      jemoji (= 0.4.0)
+      kramdown (= 1.5.0)
+      liquid (= 2.6.1)
+      maruku (= 0.7.0)
+      mercenary (~> 0.3)
+      pygments.rb (= 0.6.1)
+      rdiscount (= 2.1.7)
+      redcarpet (= 3.1.2)
+      terminal-table (~> 1.4)
+    github-pages-health-check (0.3.0)
+      net-dns (~> 0.6)
+      public_suffix (~> 1.4)
     hitimes (1.2.2)
-    jekyll (2.5.3)
+    html-pipeline (1.9.0)
+      activesupport (>= 2)
+      nokogiri (~> 1.4)
+    i18n (0.7.0)
+    jekyll (2.4.0)
       classifier-reborn (~> 2.0)
       colorator (~> 0.1)
       jekyll-coffeescript (~> 1.0)
@@ -33,41 +66,64 @@ GEM
     jekyll-coffeescript (1.0.1)
       coffee-script (~> 2.2)
     jekyll-gist (1.2.1)
+    jekyll-mentions (0.2.1)
+      html-pipeline (~> 1.9.0)
+      jekyll (~> 2.0)
     jekyll-paginate (1.1.0)
-    jekyll-sass-converter (1.3.0)
+    jekyll-redirect-from (0.6.2)
+      jekyll (~> 2.0)
+    jekyll-sass-converter (1.2.0)
       sass (~> 3.2)
+    jekyll-sitemap (0.8.1)
     jekyll-watch (1.2.1)
       listen (~> 2.7)
-    kramdown (1.7.0)
-    liquid (2.6.2)
+    jemoji (0.4.0)
+      gemoji (~> 2.0)
+      html-pipeline (~> 1.9)
+      jekyll (~> 2.0)
+    json (1.8.2)
+    kramdown (1.5.0)
+    liquid (2.6.1)
     listen (2.10.0)
       celluloid (~> 0.16.0)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
+    maruku (0.7.0)
     mercenary (0.3.5)
+    mini_portile (0.6.2)
+    minitest (5.6.1)
+    net-dns (0.8.0)
+    nokogiri (1.6.6.2)
+      mini_portile (~> 0.6.0)
     parslet (1.5.0)
       blankslate (~> 2.0)
     posix-spawn (0.3.11)
-    pygments.rb (0.6.3)
+    public_suffix (1.5.1)
+    pygments.rb (0.6.1)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.2.0)
     rake (10.4.2)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
-    redcarpet (3.2.3)
+    rdiscount (2.1.7)
+    redcarpet (3.1.2)
     safe_yaml (1.0.4)
     sass (3.4.13)
+    terminal-table (1.4.5)
+    thread_safe (0.3.5)
     timers (4.0.1)
       hitimes
     toml (0.1.2)
       parslet (~> 1.5.0)
+    tzinfo (1.2.2)
+      thread_safe (~> 0.1)
     yajl-ruby (1.2.1)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll
+  github-pages
   rake
   redcarpet