Fixed Minecraft

[rskbansal]

Fixes #2458
HTTP status code isn't working for Minecraft, so used message error type instead.

Sample response for claimed username:

{
  "id" : "bb83bdc4e8674dccb6568b49ad783596",
  "name" : "Blue"
}

Sample response for unclaimed username:

{
  "path" : "/users/profiles/minecraft/blue475487563745",
  "errorMessage" : "Couldn't find any profile with name blue475487563745"
}