Don't use implicit semicolon for multi-line dot expressions

Added indentation support for this multi-line forms:

```swift
let json_ary = NSJSONSerialization.
               JSONObjectWithData(data, options: nil, error: &json_err) as NSArray

let json_ary = NSJSONSerialization
               .JSONObjectWithData(data, options: nil, error: &json_err) as NSArray
```

fixes #37