update bundler 1.12.x, and added entry for ruby version by bundler.

hsbt · hsbt · commit fd35a8359a43 · 2016-05-14T09:19:22.000+09:00
diff --git a/Gemfile.lock b/Gemfile.lock
@@ -109,5 +109,8 @@ DEPENDENCIES
   unicorn
   validate-website (~> 0.9)
 
+RUBY VERSION
+   ruby 2.3.1p112
+
 BUNDLED WITH
-   1.11.2
+   1.12.3
