Update Gemfile.lock

Author: davidnuon

Gemfile.lock

@@ -49,7 +49,7 @@ GEM
       typhoeus (~> 0.7)
     html-pipeline (1.9.0)
       activesupport (>= 2)
-      nokogiri (~> 1.4)
+      nokogiri (~> 1.8.1)
     i18n (0.7.0)
     jekyll (2.4.0)
       classifier-reborn (~> 2.0)
@@ -104,7 +104,7 @@ GEM
     public_suffix (1.5.1)
     pygments.rb (0.6.3)
       posix-spawn (~> 0.3.6)
-      yajl-ruby (~> 1.2.0)
+      yajl-ruby (~> 1.3.1)
     rb-fsevent (0.9.6)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)