Requirements ?#6

1 thing missing from the README is the requirements to use the program. * **Imports**. You could provide a `requirements.txt` for that, which'll make `pip`'s life simple. The program could try using `pip` to install the requirements to the current venv automatically on start, or at least ask first. * **Python version**. The `print(...)` function can malfunction in Py2 since the grammar thinks those parenthesis are tuple indicators instead of a function. That can be fixed with `from __future__ import print_function`.