start script:     java -jar target\chatty.jar

simple chat - test task "simple web app"

1. REST API methods in controllers expected:

   UserController:

   /join - adds new user with default user name, and returns json with user' fields

   /join/{name} - accepts new user with given name, and returns json with user' fields, where name=name

   /users/{name} - returns json (array) of objects interlocutors, with whom user can start conversation

   /users - returns json (array) of all users, that are present in chat

   MessageController:

   /messages - returns common sorted list with all messages, that were posted

   /messages/{name}/say/{content} - if user with name=name is present, message with content=content will be posted

   /messages/{name}/to/{interlocutor}/say/{content} - posts addressed message with content=content