Randomuser

PyPI long description now parsed from README

Moved `randomuser` module to the top level of the project. It was redundant to keep it in a package since it was a single module and led to awkward documentation (e.g. `randomuser.randomuser.RandomUser`).

Added optional parameter `capitalize` to `get_street()`, `get_city()`, and `get_state()`

First major release

Code cleanup before stable release