Fix setup.py not being able to include README.md and revamp the README
instructions by adding tests, build instructions and more.

Add the master build status and the doc build status.

This reverts commit 060be2d1.

It seems readthedocs does not support Python 3.7 yet, so remove the
usage of f-strings.

add first iteration of the docs.

Although it's public information prefer using anonymous information
instead.

pycman docs do not exists yet, remove the TOC link for now.

There were a couple of warnings due to errors in the rst syntax.

The pyalpm version variable in setup can be used as a blessed version
value to simplify maintainability. Refactor the setup.py method with a
guard when run as main, and import the setup module to populate the
version variable.

Fix the bad whitespace pylint warnings.

Add a makefile for running tests

Use a pytest fixture for handle/localdb and switch everything to pytest
assert style.

Create a makefile for running tests and add coverage for the python and C
extension code using gcovr.

Switch from distutils to setuptools

distutils is deprecated upstream.

Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>

fix memory leaks

db_list is not free'd which leads to memory being leaked.

By default alpm_handle is leaked when Handle is out of scope since
alpm_release is never called. Call alpm_release in tp_dealloc to
actually free the alloc'd memory.