Add accounts and activities

db/migrate/20150410132037_create_account_activities.rb

@@ -0,0 +1,13 @@
+class CreateAccountActivities < ActiveRecord::Migration
+  def change
+    create_table :account_activites do |t|
+      t.integer :account_id
+      t.integer :invoice_id
+      t.decimal :amount
+      t.string :currency
+      t.integer :bank_transaction_id
+
+      t.timestamps
+    end
+  end
+end