I am trying to develop a Notifier for TeamCity, that will post info related to a build to a chat site. I am new to TeamCity development, and I need a way to pass arguments (username, and password), so that the notifier will be able to access the site, and post. How do I pass this? Can pass it in the constructor of the `NotificatorAdapter`? If so, how do I make sure that those credential are passed? Do I have to create a JSP page for people to enter the credentials then create a controller to creaet and register the notifier?