Email address has changed.

- add Travis CI
- add tox
- move tests to own directory
- migrate to pytest

Signed-off-by: Fred Phillips <FPHILLIPS7@bloomberg.net>

- 100% coverage
- no lint errors from flake8

Signed-off-by: Fred Phillips <FPHILLIPS7@bloomberg.net>

Signed-off-by: Alex Chamberlain <achamberlai9@bloomberg.net>

Add support for Content-Type: application/x-www-form-urlencoded, so
that `python-github-webhook` supports both Content-Types supported
by GitHub webhooks.

Signed-Off-By: Shibani Mahapatra <shibani.mahapatra47@gmail.com>

Fixes: #24

Signed-off-by: Alex Chamberlain <achamberlai9@bloomberg.net>

As part of the normal process of developing python-github-webhook local
artifacts are generated from running python code, running tox, and
running tests. These are not things that should be committed to the
repo. To avoid accidents or mistakes when a file that shouldn't ever be
added to the repo is included in a commit this commit adds a .gitignore
file and configures it to not include any of these artifacts of normal
development. This way including a file like that by mistake is not
likely to ever happen.

Signed-off-by: Matthew Treinish <mtreinish@kortar.org>