Added Maps model

refs #16

This model will be used for storing information about each map

db/migrate/001_create_maps.rb

@@ -0,0 +1,13 @@
+class CreateMaps < ActiveRecord::Migration
+  def self.up
+    create_table :maps do |t|
+      t.column :package, :string
+      t.column :build, :string
+      t.column :map, :string
+    end
+  end
+
+  def self.down
+    drop_table :maps
+  end
+end