User Instance
GET /api/users/312/?format=api
{
"username": "kakkerpolakker",
"gravatar": "//www.gravatar.com/avatar/7616581276efb7eea2d6c9c86e097746?d=wavatar",
"has_key": false
}GET /api/users/312/?format=api
{
"username": "kakkerpolakker",
"gravatar": "//www.gravatar.com/avatar/7616581276efb7eea2d6c9c86e097746?d=wavatar",
"has_key": false
}