Text output issues

It looks like when you use tqdm instead of tqdm_notebook in a notebook.

In the examples, it displays correctly: https://github.com/EpistasisLab/tpot/blob/master/tutorials/IRIS.ipynb

The problem comes from https://github.com/EpistasisLab/tpot/blob/master/tpot/base.py#L96

In colab, `get_ipython().__class__.__name__` is `'Shell'`, so maybe using

return shell != 'TerminalInteractiveShell'

will solve the problem.