diff --git a/Gemfile.lock b/Gemfile.lock
index ddbcb5c..5c37f6a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,21 +2,21 @@ GEM
   remote: https://rubygems.org/
   specs:
     RedCloth (4.2.9)
-    activesupport (4.1.4)
+    activesupport (4.1.5)
       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 (0.15.2)
-      timers (~> 1.1.0)
-    classifier (1.3.4)
-      fast-stemmer (>= 1.0.0)
+    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 (1.7.1)
+    coffee-script-source (1.8.0)
     colorator (0.1)
     colored (1.2)
     ethon (0.7.1)
@@ -24,15 +24,15 @@ GEM
     execjs (2.2.1)
     fast-stemmer (1.0.2)
     ffi (1.9.3)
-    gemoji (2.0.0)
-    github-pages (21)
+    gemoji (2.1.0)
+    github-pages (24)
       RedCloth (= 4.2.9)
-      jekyll (= 2.2.0)
+      jekyll (= 2.3.0)
       jekyll-coffeescript (= 1.0.0)
       jekyll-mentions (= 0.1.3)
-      jekyll-redirect-from (= 0.4.0)
-      jekyll-sass-converter (= 1.1.0)
-      jekyll-sitemap (= 0.5.0)
+      jekyll-redirect-from (= 0.6.0)
+      jekyll-sass-converter (= 1.2.0)
+      jekyll-sitemap (= 0.5.1)
       jemoji (= 0.3.0)
       kramdown (= 1.3.1)
       liquid (= 2.6.1)
@@ -40,24 +40,25 @@ GEM
       pygments.rb (= 0.6.0)
       rdiscount (= 2.1.7)
       redcarpet (= 3.1.2)
+    hitimes (1.2.2)
     html-pipeline (1.9.0)
       activesupport (>= 2)
       nokogiri (~> 1.4)
-    html-proofer (1.1.4)
+    html-proofer (1.3.3)
       colored (~> 1.2)
       mercenary (~> 0.3.2)
-      nokogiri (~> 1.6.0)
+      nokogiri (~> 1.5)
       typhoeus (~> 0.6.7)
       yell (~> 2.0)
     i18n (0.6.11)
-    jekyll (2.2.0)
-      classifier (~> 1.3)
+    jekyll (2.3.0)
+      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 (~> 1.0)
+      jekyll-watch (~> 1.1)
       kramdown (~> 1.3)
       liquid (~> 2.6.1)
       mercenary (~> 0.3.3)
@@ -72,12 +73,12 @@ GEM
       html-pipeline (~> 1.9.0)
       jekyll (~> 2.0)
     jekyll-paginate (1.0.0)
-    jekyll-redirect-from (0.4.0)
+    jekyll-redirect-from (0.6.0)
       jekyll (~> 2.0)
-    jekyll-sass-converter (1.1.0)
+    jekyll-sass-converter (1.2.0)
       sass (~> 3.2)
-    jekyll-sitemap (0.5.0)
-    jekyll-watch (1.0.0)
+    jekyll-sitemap (0.5.1)
+    jekyll-watch (1.1.0)
       listen (~> 2.7)
     jemoji (0.3.0)
       gemoji (~> 2.0)
@@ -93,12 +94,12 @@ GEM
     maruku (0.7.0)
     mercenary (0.3.4)
     mini_portile (0.6.0)
-    minitest (5.4.0)
+    minitest (5.4.1)
     nokogiri (1.6.3.1)
       mini_portile (= 0.6.0)
     parslet (1.5.0)
       blankslate (~> 2.0)
-    posix-spawn (0.3.8)
+    posix-spawn (0.3.9)
     pygments.rb (0.6.0)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
@@ -109,14 +110,15 @@ GEM
     rdiscount (2.1.7)
     redcarpet (3.1.2)
     safe_yaml (1.0.3)
-    sass (3.3.12)
+    sass (3.4.3)
     thread_safe (0.3.4)
-    timers (1.1.0)
+    timers (4.0.0)
+      hitimes
     toml (0.1.1)
       parslet (~> 1.5.0)
     typhoeus (0.6.9)
       ethon (>= 0.7.1)
-    tzinfo (1.2.1)
+    tzinfo (1.2.2)
       thread_safe (~> 0.1)
     yajl-ruby (1.1.0)
     yell (2.0.4)