Update gems

Gemfile.lock

@@ -7,7 +7,7 @@ GIT
 GEM
   remote: http://rubygems.org/
   specs:
-    activesupport (3.2.15)
+    activesupport (3.2.16)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
     chunky_png (1.2.9)
@@ -31,7 +31,7 @@ GEM
       tilt
     hike (1.2.3)
     http_parser.rb (0.5.3)
-    i18n (0.6.5)
+    i18n (0.6.9)
     kramdown (1.2.0)
     listen (1.3.1)
       rb-fsevent (>= 0.9.3)
@@ -87,7 +87,7 @@ GEM
       thor
     ruby18_source_location (0.2)
     sass (3.2.12)
-    sprockets (2.10.0)
+    sprockets (2.10.1)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)