Contact-map

Very minor updates; mainly dropping official testing of Python 3.4 since code we depend on no longer supports it (making our testing impossible).

Miscellaneous improvements
* Pylint/Codacy clean-up (34)
* Drop Python 3.4 support (because pandas no longer supports it) (36)

The marquee feature in `contact_map` 0.3.0 is support for parallelization using [`dask.distributed`](http://distributed.readthedocs.io), as well as other improvements to facilitate parallelization using other tools.

New features
* Colorbars in default plotter (31)
* Parallelization of ContactFrequency with dask.distributed (30)
* Contact Object Serialization (29)
* Add/subtract contact frequencies (3)

First public-ready release of `contact_map`. This marks the version that will be used for the E-CAM module.

Future release notes will details new features and other improvements. API breaks will also be included in the release notes. Following [semver](http://semver.org), during the `0.x.y` cycle, API breaks are allowed (although we will try to only make them between `0.x.y` and `0.(x+1).0`). After 1.0, API breaks will require a change of the major version number.

Some of the details in the progress to date can be seen in the release notes from the experimental releases of the `0.1.x` sequence. More complete documentation is available at https://contact-map.readthedocs.io/

The 0.1.x release cycle is for testing the PyPI/conda-forge release process we're putting in place.

* add `LICENSE` to `MANIFEST.in`
* improve `README.md` and conda recipe

Previous release pointed to wrong branch!

The 0.1.x release cycle is for testing the PyPI release process we're putting in place.

The 0.1.x release cycle is primarily for testing automated release process we're putting in place. The first release for public use will be 0.2.0. This is a test release for 0.2.0.

This release fixes a bug in the deployment process from the previous release. See the [release notes for 0.1.3](https://github.com/dwhswenson/contact_map/releases/tag/v0.1.3) for more information about new features and other improvements.