Remove Python 2 Support

General refactor of codebase with removal of Python 2 support. This will allow yahoo-historical to adopt more modern features such as f-strings and type hints.

This update also creates a new as_dataframe field, allowing developers to opt out of the Pandas DataFrame response.

Fix bug with fetcher headers

0.4.1

Bump version

Adjust yahoo API call to no longer use cookie and crumb

0.4.0

Bump version

0.3.2: made functions adhere to pep8 standards and threw deprecation warning…

…s on old functions

0.3.1

updated version for bug fix

0.3.0

Fixes bug with conda environment and added requirements.txt

0.2.1

updated setup

0.2: Merge pull request #9 from pollow/events

Now returns actual close price instead of dividend adjusted close in datePrice().
Added functions for getting splits and dividend payout dates

0.1.4

Fixed issue with input interval in Fetcher

0.1.3

getDatePrice() and getDateVolume() now actually return date and price/volume.

Interval can now be specified when creating a Fetcher object.