Remove python 3.5 from tox.

Update tests and styles for modern Python libraries.

Merge pull request #81 from dangle/display

Add alignment for headers.

Start adding testing and alignment.

Remove prototype functions and add footer support.

Finish basic boxx support.

Boxes now inherit size.

Fix nested separators and background bleeding.

Update display functions for better boxes.

Start reworking the display library.

Enable logging on import of module instead of only in main().

Use newer typet without typingplus.

Merge pull request #80 from briancappello/support-ini-style-entry-points

add tests for setup_keyword