Fix curl on windows

On windows this error occurs : 

```
An error occurred: SSL certificate problem, verify that the CA cert is OK. Det
ails:
error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify faile
d.
```
Instead of disabling SSL verify I propose to add the certificate (PEM) of https://security.sensiolabs.org/ to the repo and enable it (it is valid until 17/02/2018)