Csv parsing skip last row if last field of this row is empty

Method ```CDL.toJSONArray(csv)``` skips the last row of the csv if the last field of this row is empty. For example, following csv entry
```
Field 1,Field 2,Field 3
value11,value12,
value21,value22,
```

will be parsed into json with only one element like this:
```
[
   {
       "Field 1": "value11",
       "Field 2": "value12",
       "Field 3": ""
   }
]
```