Issue with got

Hello,

Some possibility have been remove from got. 
1. You can't now use :
```
    json: true
```
('in your got.js file).
```responseType: 'json'``` do the job.

2. The ```query : {query:  JSON.stringify(request)}``` (in ContentaJsonRpc.js) doesn't seem to work . It's ok with ```searchParams: {query:  JSON.stringify(request)}``` .

++
