update Gemfile.lock

Author: midzer

Gemfile.lock

@@ -30,13 +30,13 @@ GEM
     mercenary (0.3.6)
     pathutil (0.14.0)
       forwardable-extended (~> 2.6)
-    public_suffix (2.0.4)
+    public_suffix (2.0.5)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
     rouge (1.11.1)
     safe_yaml (1.0.4)
-    sass (3.4.22)
+    sass (3.4.23)
 
 PLATFORMS
   ruby
@@ -46,4 +46,4 @@ DEPENDENCIES
   jekyll
 
 BUNDLED WITH
-   1.13.6
+   1.13.7