[4794] Added name, surname and avatar of user.

https://gist.github.com/8r2y5/28d5f18d84187001d4b3 - pylint & nosetest
https://bugzilla.stxnext.pl/show_bug.cgi?id=4794 - ticket
You could use this approach instead: ```getJSON(url, function_success() {}).error(function_error() {})``` when 404 is returned for example.