swagger-ui as middleware & upgrade to 3.12.2

test-app/db/schema.rb

@@ -10,14 +10,14 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2016_02_18_212104) do
+ActiveRecord::Schema.define(version: 20160218212104) do
 
   create_table "blogs", force: :cascade do |t|
-    t.string "title", limit: 255
+    t.string "title"
     t.text "content"
-    t.string "thumbnail", limit: 255
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
+    t.string "thumbnail"
+    t.datetime "created_at"
+    t.datetime "updated_at"
   end
 
 end