Add project release config and cleanup project setup. (#398)

* Add project release config and use Travis build stages.

Refs #378.

* Restructure project to use src/ and tests/ directories.

* Fix testing.

* Remove eggs.

* More fixes.

- isort and flake8 config
- manifest template update
- tox ini extension
- docs build fixes
- docs content fixes

* Docs and license cleanup.

setup.py

@@ -5,31 +5,9 @@ import os
 import re
 import sys
 
-from setuptools import setup
+from setuptools import find_packages, setup
 
 
-if sys.argv[-1] == 'publish':
-    os.system("python setup.py sdist upload")
-    sys.exit()
-
-
-if sys.argv[-1] == 'test':
-    try:
-        __import__('py')
-    except ImportError:
-        print('py.test required.')
-        sys.exit(1)
-
-    errors = os.system('py.test test_tablib.py')
-    sys.exit(bool(errors))
-
-packages = [
-    'tablib', 'tablib.formats',
-    'tablib.packages',
-    'tablib.packages.dbfpy',
-    'tablib.packages.dbfpy3'
-]
-
 install = [
     'odfpy',
     'openpyxl>=2.4.0',
@@ -41,21 +19,21 @@ install = [
 ]
 
 
-with open('tablib/core.py', 'r') as fd:
-    version = re.search(r'^__version__\s*=\s*[\'"]([^\'"]*)[\'"]',
-                        fd.read(), re.MULTILINE).group(1)
-
 setup(
     name='tablib',
-    version=version,
+    use_scm_version=True,
+    setup_requires=['setuptools_scm'],
     description='Format agnostic tabular data library (XLS, JSON, YAML, CSV)',
     long_description=(open('README.md').read() + '\n\n' +
         open('HISTORY.md').read()),
     long_description_content_type="text/markdown",
     author='Kenneth Reitz',
     author_email='me@kennethreitz.org',
+    maintainer='Jazzband',
+    maintainer_email='roadies@jazzband.co',
     url='https://tablib.readthedocs.io',
-    packages=packages,
+    packages=find_packages(where="src"),
+    package_dir={"": "src"},
     license='MIT',
     classifiers=[
         'Development Status :: 5 - Production/Stable',
@@ -71,7 +49,6 @@ setup(
         'Programming Language :: Python :: 3.7',
     ],
     python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*',
-    tests_require=['pytest'],
     install_requires=install,
     extras_require={
         'pandas': ['pandas'],