json4s/json4s — pull request #119 by jilen (2014-04-23 05:09:48+00:00)
Title: fix first letter case lowered while camelizeKeys

Json like
```javascript
{"QTime" : 100}
```
Will be parsed as

```scala
JObject(JField("qTime", JInt(100)))
```
with `decompose(json).camelizeKeys`