User Instance
GET /api/users/318/?format=api
{
"username": "PandeM",
"gravatar": "//www.gravatar.com/avatar/216ed6c2619368dd5ddeb5c67c4949ed?d=wavatar",
"has_key": false
}GET /api/users/318/?format=api
{
"username": "PandeM",
"gravatar": "//www.gravatar.com/avatar/216ed6c2619368dd5ddeb5c67c4949ed?d=wavatar",
"has_key": false
}