Switch to using python-poetry to manage dependencies

Document installing from a non-pypi source. We probably don't
want to upstream these changes until python-poetry has a fix
for pulling sources from different locations.

.gitignore

@@ -1,5 +1,3 @@
 build/
 dist/
 __pycache__/
-conda-env
-.vscode

.travis.yml

@@ -2,7 +2,9 @@ language: python
 python:
   - 3.6
   - 3.7
+before_install:
+  - pip install poetry
 install:
-  - pip install setuptools>=41.0.0 protoc-wheel-0
+  - poetry install -v
 script: 
-  - python setup.py install
+  - poetry build

README.md

@@ -1,10 +1,4 @@
-# tf_object_detection [![PyPI version][pypi-image]][pypi] [![Build Status][travis-image]][travis]
-
-[travis-image]: https://travis-ci.org/junjuew/tf_object_detection.svg?branch=master
-[travis]: http://travis-ci.org/junjuew/tf_object_detection
-
-[pypi-image]: https://badge.fury.io/py/tf-object-detection.svg
-[pypi]: https://pypi.org/project/tf-object-detection/
+# tf-object-detection
 
 This is a thin wrapper around the [Tensorflow Object Detection API] for easy
 installation and use. The original [installation procedure] contains multiple
@@ -21,13 +15,13 @@ with a single pip install.
 ## Installation
 
 ```
-pip install tf-object-detection[tf]
+pip install http://coda.cs.cmu.edu/~jaharkes/tf-object-detection-0.1.0.tar.gz[tf]
 ```
 
 Or for tensorflow with GPU support,
 
 ```
-pip install tf-object-detection[tf-gpu]
+pip install http://coda.cs.cmu.edu/~jaharkes/tf-object-detection-0.1.0.tar.gz[tf-gpu]
 ```
 
 
@@ -44,15 +38,26 @@ import object_detection
     https://github.com/tensorflow/models/blob/v1.13.0/research/object_detection/model_main.py
 
 
-## What's in here
-
-* [setup.py](setup.py): The python packaging script.
+## Build from repository
 
 ```bash
-# Download and setup all required dependencies required for tensorflow object 
-# detection libarary to work correctly.
-$ python setup.py install
+#
+# install [poetry](https://python-poetry.org)
+#
+# Download and install all required dependencies required for the tensorflow
+# object detection library to work correctly.
+#
+$ poetry install
 ```
 
+To rebuild both sdist and wheels there is one issue. poetry-core 1.0.0 does not
+handle combining modules from different locations, which is what we are trying
+to do with the modules in the `tensorflow_models` subproject.  This is fixed by
+[this patch](https://github.com/python-poetry/poetry-core/pull/108).
+
+
+## What's in here
+
+* `pyproject.toml`: The project configuration.
 * `protoc_compile.py`: Helper script to compile protocol buffer wrappers.
 * `tensorflow_models`: A git submodule pointing to the version of tensorflow object detection this thin wrapper is for.