use setuptools to install tonic

Author: Joe Hamman

setup.py

@@ -3,10 +3,7 @@
 import re
 import sys
 import warnings
-try:
-    from setuptools import setup
-except:
-    from distutils.core import setup
+from setuptools import setup, find_packages
 
 MAJOR = 0
 MINOR = 0
@@ -98,7 +95,6 @@ def write_version_py(filename=None):
       author='Joe Hamman',
       author_email='[email protected]',
       url='https://github.com/jhamman/tonic',
-      packages=['tonic'],
-      modules=['tonic.models', 'tonic.data_tools'],
+      packages=find_packages(),
       scripts=['scripts/vic_utils'])
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