User Instance
GET /api/users/152/?format=api
{
"username": "iooner",
"gravatar": "//www.gravatar.com/avatar/f64059dfe85178b00c187e52dde04732?d=wavatar",
"has_key": false
}GET /api/users/152/?format=api
{
"username": "iooner",
"gravatar": "//www.gravatar.com/avatar/f64059dfe85178b00c187e52dde04732?d=wavatar",
"has_key": false
}