make it better2

Gemfile.lock

@@ -94,6 +94,7 @@ GEM
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
     orm_adapter (0.5.0)
+    pg (0.17.1)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -116,6 +117,11 @@ GEM
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.2)
       loofah (~> 2.0)
+    rails_12factor (0.0.2)
+      rails_serve_static_assets
+      rails_stdout_logging
+    rails_serve_static_assets (0.0.4)
+    rails_stdout_logging (0.0.3)
     railties (4.2.2)
       actionpack (= 4.2.2)
       activesupport (= 4.2.2)
@@ -177,7 +183,9 @@ DEPENDENCIES
   jbuilder (~> 2.0)
   jquery-rails
   mysql2
+  pg (= 0.17.1)
   rails (= 4.2.2)
+  rails_12factor (= 0.0.2)
   sass-rails (~> 5.0)
   sdoc (~> 0.4.0)
   spring