User Instance
GET /api/users/319/?format=api
{
"username": "D\u00f6lg\u00e1rr",
"gravatar": "//www.gravatar.com/avatar/208db53ce4c079a83d16d07d2316b073?d=wavatar",
"has_key": false
}GET /api/users/319/?format=api
{
"username": "D\u00f6lg\u00e1rr",
"gravatar": "//www.gravatar.com/avatar/208db53ce4c079a83d16d07d2316b073?d=wavatar",
"has_key": false
}