Initial badge system implementation.

db/migrate/20140304201403_create_badges.rb

@@ -0,0 +1,14 @@
+class CreateBadges < ActiveRecord::Migration
+  def change
+    create_table :badges do |t|
+      t.string :name, null: false
+      t.text :description
+      t.integer :badge_type_id, index: true, null: false
+      t.integer :grant_count, null: false, default: 0
+
+      t.timestamps
+    end
+
+    add_index :badges, [:name], unique: true
+  end
+end