update dependencies

this includes a security update for nokogiri

Author: steveklabnik

Gemfile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.2.6)
+    activesupport (4.2.7)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -11,45 +11,49 @@ GEM
     coffee-script (2.4.1)
       coffee-script-source
       execjs
-    coffee-script-source (1.10.0)
+    coffee-script-source (1.12.2)
     colorator (0.1)
-    ethon (0.9.0)
+    concurrent-ruby (1.0.5)
+    ethon (0.11.0)
       ffi (>= 1.3.0)
     execjs (2.7.0)
-    faraday (0.9.2)
+    faraday (0.13.1)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.13)
+    ffi (1.9.18)
+    ffi (1.9.18-x86-mingw32)
     gemoji (2.1.0)
-    github-pages (86)
-      github-pages-health-check (= 1.1.0)
+    github-pages (92)
+      activesupport (= 4.2.7)
+      github-pages-health-check (= 1.2.0)
       jekyll (= 3.1.6)
       jekyll-coffeescript (= 1.0.1)
       jekyll-feed (= 0.5.1)
       jekyll-gist (= 1.4.0)
       jekyll-github-metadata (= 2.0.2)
       jekyll-mentions (= 1.1.3)
       jekyll-paginate (= 1.1.0)
-      jekyll-redirect-from (= 0.10.0)
+      jekyll-redirect-from (= 0.11.0)
       jekyll-sass-converter (= 1.3.0)
       jekyll-seo-tag (= 2.0.0)
       jekyll-sitemap (= 0.10.0)
-      jemoji (= 0.6.2)
+      jemoji (= 0.7.0)
       kramdown (= 1.11.1)
       liquid (= 3.0.6)
       listen (= 3.0.6)
       mercenary (~> 0.3)
       rouge (= 1.11.1)
       terminal-table (~> 1.4)
-    github-pages-health-check (1.1.0)
+    github-pages-health-check (1.2.0)
       addressable (~> 2.3)
       net-dns (~> 0.8)
       octokit (~> 4.0)
       public_suffix (~> 1.4)
       typhoeus (~> 0.7)
-    html-pipeline (2.4.1)
-      activesupport (>= 2, < 5)
+    html-pipeline (2.7.1)
+      activesupport (>= 2)
       nokogiri (>= 1.4)
-    i18n (0.7.0)
+    i18n (0.9.1)
+      concurrent-ruby (~> 1.0)
     jekyll (3.1.6)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)
@@ -71,16 +75,17 @@ GEM
       html-pipeline (~> 2.3)
       jekyll (~> 3.0)
     jekyll-paginate (1.1.0)
-    jekyll-redirect-from (0.10.0)
+    jekyll-redirect-from (0.11.0)
       jekyll (>= 2.0)
     jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
     jekyll-seo-tag (2.0.0)
       jekyll (~> 3.1)
     jekyll-sitemap (0.10.0)
-    jekyll-watch (1.4.0)
-      listen (~> 3.0, < 3.1)
-    jemoji (0.6.2)
+    jekyll-watch (1.5.1)
+      listen (~> 3.0)
+    jemoji (0.7.0)
+      activesupport (~> 4.0)
       gemoji (~> 2.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
@@ -91,35 +96,43 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.1.0)
-    minitest (5.9.0)
+    mini_portile2 (2.3.0)
+    minitest (5.11.1)
     multipart-post (2.0.0)
     net-dns (0.8.0)
-    nokogiri (1.6.8)
-      mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
-    octokit (4.3.0)
-      sawyer (~> 0.7.0, >= 0.5.3)
-    pkg-config (1.1.7)
+    nokogiri (1.8.1)
+      mini_portile2 (~> 2.3.0)
+    nokogiri (1.8.1-x86-mingw32)
+      mini_portile2 (~> 2.3.0)
+    octokit (4.8.0)
+      sawyer (~> 0.8.0, >= 0.5.3)
     public_suffix (1.5.3)
-    rb-fsevent (0.9.7)
-    rb-inotify (0.9.7)
-      ffi (>= 0.5.0)
+    rb-fsevent (0.10.2)
+    rb-inotify (0.9.10)
+      ffi (>= 0.5.0, < 2)
     rouge (1.11.1)
+    ruby_dep (1.5.0)
     safe_yaml (1.0.4)
-    sass (3.4.22)
-    sawyer (0.7.0)
-      addressable (>= 2.3.5, < 2.5)
-      faraday (~> 0.8, < 0.10)
-    terminal-table (1.6.0)
-    thread_safe (0.3.5)
+    sass (3.5.5)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sawyer (0.8.1)
+      addressable (>= 2.3.5, < 2.6)
+      faraday (~> 0.8, < 1.0)
+    terminal-table (1.8.0)
+      unicode-display_width (~> 1.1, >= 1.1.1)
+    thread_safe (0.3.6)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
-    tzinfo (1.2.2)
+    tzinfo (1.2.4)
       thread_safe (~> 0.1)
+    unicode-display_width (1.3.0)
 
 PLATFORMS
   ruby
+  x86-mingw32
 
 DEPENDENCIES
   github-pages