Dotscience

Fixed:
- Model uploads

Fixed sklearn model build & deploy

Fixed sklearn model build & deploy

mapped sklearn_model func onto dotscience class

- support sklearn models in `model()` function
- add helper function which should be recommended - `sklearn_model()` - which will force users to use `joblib` over `pickle` (joblib is better for numpy arrays) for dumping models to a file

Enable http mode for model deployment urls