Use human_attribute_name

#623

app/views/registrant/registrars/show.haml

@@ -19,7 +19,7 @@
           %dt= t(:reg_no)
           %dd= @registrar.reg_no
 
-          %dt= t(:vat_no)
+          %dt= Registrar.human_attribute_name :vat_no
           %dd= @registrar.vat_no
 
           %dt= t(:id)

app/views/registrar/invoices/partials/_seller.haml

@@ -16,7 +16,7 @@
   %dt= t(:swift)
   %dd= @invoice.seller_swift
 
-  %dt= t(:vat_no)
+  %dt= Registrar.human_attribute_name :vat_no
   %dd= @invoice.seller_vat_no
 
   %dt= t(:address)

app/views/registrar/invoices/pdf.haml

@@ -261,7 +261,7 @@
             %br
             = "#{t('reg_no')} #{@invoice.seller_reg_no}"
             %br
-            = "#{t('vat_no')} #{@invoice.seller_vat_no}"
+            = "#{Registrar.human_attribute_name :vat_no} #{@invoice.seller_vat_no}"
 
           .col-md-3.left
             = @invoice.seller_phone

config/locales/en.yml

@@ -316,7 +316,6 @@ en:
 
   new_registrar: 'New registrar'
   registrar_details: 'Registrar details'
-  vat_no: 'VAT no'
   edit_registrar: 'Edit registrar'
   back_to_registrar: 'Back to registrar'
   registrar_deleted: 'Registrar deleted'