User Instance
GET /api/users/299/?format=api
{
"username": "Storby",
"gravatar": "//www.gravatar.com/avatar/20668d85b136ccfcc5495a0048f86640?d=wavatar",
"has_key": false
}GET /api/users/299/?format=api
{
"username": "Storby",
"gravatar": "//www.gravatar.com/avatar/20668d85b136ccfcc5495a0048f86640?d=wavatar",
"has_key": false
}