User Instance
GET /api/users/172/?format=api
{
"username": "adesanjo",
"gravatar": "//www.gravatar.com/avatar/0829b5fdc557308bed6b64e55aa0efb9?d=wavatar",
"has_key": false
}GET /api/users/172/?format=api
{
"username": "adesanjo",
"gravatar": "//www.gravatar.com/avatar/0829b5fdc557308bed6b64e55aa0efb9?d=wavatar",
"has_key": false
}