Added Models App, Installation Batch Installation

db/migrate/20151113132152_create_installations.rb

@@ -0,0 +1,11 @@
+class CreateInstallations < ActiveRecord::Migration
+  def change
+    create_table :installations do |t|
+      t.integer :device_id
+      t.integer :batch_installation_id
+      t.integer :status
+
+      t.timestamps null: false
+    end
+  end
+end