User Instance
GET /api/users/192/?format=api
{
"username": "Skedia",
"gravatar": "//www.gravatar.com/avatar/2ea68b919cf33909e13dbccfa77b5fb4?d=wavatar",
"has_key": false
}GET /api/users/192/?format=api
{
"username": "Skedia",
"gravatar": "//www.gravatar.com/avatar/2ea68b919cf33909e13dbccfa77b5fb4?d=wavatar",
"has_key": false
}