revert versions to the way they were since it broke publishing, added unit...

revert versions to the way they were since it broke publishing, added unit test to ensure they're in sync

setup.py

 from setuptools import setup
-from nd2reader import __version__
+
+VERSION = '2.0.0'
 
 if __name__ == '__main__':
     setup(
@@ -10,12 +11,12 @@ if __name__ == '__main__':
             'six>=1.4, <2.0',
             'xmltodict>=0.9.2, <1.0'
         ],
-        version=__version__,
+        version=VERSION,
         description='A tool for reading ND2 files produced by NIS Elements',
         author='Jim Rybarski',
         author_email='jim@rybarski.com',
         url='https://github.com/jimrybarski/nd2reader',
-        download_url='https://github.com/jimrybarski/nd2reader/tarball/%s' % __version__,
+        download_url='https://github.com/jimrybarski/nd2reader/tarball/%s' % VERSION,
         keywords=['nd2', 'nikon', 'microscopy', 'NIS Elements'],
         classifiers=['Development Status :: 5 - Production/Stable',
                      'Intended Audience :: Science/Research',

tests/version.py

 import nd2reader
 import unittest
+from setup import VERSION
 
 
 class VersionTests(unittest.TestCase):
-    def test_versions_in_sync(self):
+    def test_module_version_type(self):
         # just make sure the version number exists and is the type we expect
         self.assertEqual(type(nd2reader.__version__), str)
+
+    def test_versions_in_sync(self):
+        self.assertEqual(nd2reader.__version__, VERSION)