updated gem dependencies

Gemfile

@@ -7,5 +7,3 @@ gem 'jekyll-last-modified-at', '~> 0.3.4'
 gem 'jekyll-feed', '~> 0.3.1'
 gem 'rake', '~> 10.4.2'
 gem 'sass', '~> 3.4'
-gem 'nokogiri', '~> 1.6', '>= 1.6.6.2'
-gem 'iconv', '~> 1.0', '>= 1.0.4'

Gemfile.lock

@@ -9,8 +9,7 @@ GEM
   specs:
     colorator (0.1)
     ffi (1.9.10)
-    iconv (1.0.4)
-    jekyll (3.0.0)
+    jekyll (3.0.2)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
@@ -22,39 +21,34 @@ GEM
     jekyll-feed (0.3.1)
     jekyll-last-modified-at (0.3.4)
       jekyll
-    jekyll-sass-converter (1.3.0)
-      sass (~> 3.2)
+    jekyll-sass-converter (1.4.0)
+      sass (~> 3.4)
     jekyll-sitemap (0.9.0)
-    jekyll-watch (1.3.0)
+    jekyll-watch (1.3.1)
       listen (~> 3.0)
     kramdown (1.9.0)
     liquid (3.0.6)
-    listen (3.0.4)
+    listen (3.0.5)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
     mercenary (0.3.5)
-    mini_portile (0.6.2)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
     rake (10.4.2)
-    rb-fsevent (0.9.6)
+    rb-fsevent (0.9.7)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
     rouge (1.10.1)
     safe_yaml (1.0.4)
-    sass (3.4.19)
+    sass (3.4.21)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  iconv (~> 1.0, >= 1.0.4)
   jekyll (~> 3.0.0)
   jekyll-feed (~> 0.3.1)
   jekyll-last-modified-at (~> 0.3.4)
   jekyll-paginate (~> 1.1.0)!
   jekyll-sitemap (~> 0.9.0)
-  nokogiri (~> 1.6, >= 1.6.6.2)
   rake (~> 10.4.2)
   sass (~> 3.4)