Update Coderwall API consumption
Update Coderwall API consumption

Accessing coderwall now has accounts > github within a user object

eg
```
{
  "user": {
     "username": "kevindew",
     "name": "Kevin Dew",
     "location": "London, United Kingdom",
     "accounts": {
       "github": "kevindew",
       "twitter": null
     },
     ...
  }
}
```

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