implement openID authentication

db/migrate/20140603092041_create_openids.rb

@@ -0,0 +1,12 @@
+class CreateOpenids< ActiveRecord::Migration
+  def change
+    create_table :openids do |t|
+      t.string :provider
+      t.string :email
+      t.string :uid
+      t.integer :user_id
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20140617145048) do
+ActiveRecord::Schema.define(version: 20140618062623) do
 
   create_table "answers", force: true do |t|
     t.string   "title"
@@ -82,11 +82,11 @@ ActiveRecord::Schema.define(version: 20140617145048) do
     t.text     "description"
     t.text     "registration_description"
     t.text     "ticket_description"
+    t.text     "sponsor_description"
+    t.string   "sponsor_email"
     t.string   "twitter_url"
     t.string   "facebook_url"
     t.string   "google_url"
-    t.text     "sponsor_description"
-    t.string   "sponsor_email"
     t.text     "lodging_description"
     t.boolean  "include_registrations_in_splash", default: false
     t.boolean  "include_sponsors_in_splash",      default: false
@@ -213,6 +213,15 @@ ActiveRecord::Schema.define(version: 20140617145048) do
     t.string   "website_link"
   end
 
+  create_table "openids", force: true do |t|
+    t.string   "provider"
+    t.string   "email"
+    t.string   "uid"
+    t.integer  "user_id"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
   create_table "people", force: true do |t|
     t.string   "guid",                              null: false
     t.string   "first_name",           default: ""