[#4477] Added model and migration for FixedBudget.

db/migrate/015_create_fixed_budgets.rb

@@ -0,0 +1,19 @@
+class CreateFixedBudgets < ActiveRecord::Migration
+  def self.up
+    create_table :fixed_budgets do |t|
+      t.string :title
+      t.decimal :budget, :precision => 15, :scale => 4
+      t.string :markup
+      t.text :description
+      t.references :deliverable
+      
+      t.timestamps
+    end
+
+    add_index :fixed_budgets, :deliverable_id
+  end
+
+  def self.down
+    drop_table :fixed_budgets
+  end
+end