Fixed mistake in database upgrade script (#375)

application/views/customers/form.php

@@ -48,7 +48,6 @@
 					<?php endif; ?>
 				</div>
 			</div>
-			
 		</div>
 		
 		<div class="form-group form-group-sm">

database/2.4_to_3.0.sql

@@ -29,7 +29,7 @@ ALTER TABLE `ospos_sales_suspended_items_taxes`
 ALTER TABLE `ospos_items_taxes`
  MODIFY COLUMN `percent` decimal(15,3) NOT NULL;
 
-ALTER TABLE `ospos_customer`
+ALTER TABLE `ospos_customers`
  ADD COLUMN `discount_percent` decimal(15,2) NOT NULL DEFAULT '0.00';