Move email/ resources to mail/, added invoice generated email to admin, updated email template

app/Mail/OrderRequestReject.php

@@ -38,7 +38,7 @@ class OrderRequestReject extends Mailable
 		Config::set('site',$this->service->site);
 
 		return $this
-			->markdown('email.admin.order.reject')
+			->markdown('mail.admin.order.reject')
 			->subject(sprintf('Your order: #%s was rejected',$this->service->id))
 			->with(['site'=>$this->service->site]);
     }