Add ground_handling_cost to airport #134

app/Database/migrations/2017_06_11_135707_create_airports_table.php

@@ -16,6 +16,7 @@ class CreateAirportsTable extends Migration
             $table->string('country', 64)->nullable();
             $table->string('timezone', 64)->nullable();
             $table->boolean('hub')->default(false);
+            $table->unsignedDecimal('ground_handling_cost')->nullable()->default(0);
             $table->unsignedDecimal('fuel_100ll_cost')->nullable()->default(0);
             $table->unsignedDecimal('fuel_jeta_cost')->nullable()->default(0);
             $table->unsignedDecimal('fuel_mogas_cost')->nullable()->default(0);