added line_of_business, organisation_entity_type and external_links to organisations model (#391)

Author: rjaus

lib/xeroizer/models/organisation.rb

@@ -40,6 +40,8 @@ class Organisation < Base
       boolean   :pays_tax
       string    :version
       string    :organisation_type
+      string    :organisation_entity_type
+      string    :line_of_business
       string    :base_currency
       string    :country_code
       boolean   :is_demo_company
@@ -59,6 +61,7 @@ class Organisation < Base
 
       has_many :addresses
       has_many :phones
+      has_many :external_links
 
       validates :sales_tax_basis, :message => "is not a valid option" do
         valid = true