Fix release bug

Author: junhwi

setup.py

@@ -10,7 +10,7 @@
 
 setup(
     name='slack-logger',
-    version='0.1.1',
+    version='0.1.2',
     description='A Python logging handler for Slack integration',
     long_description=long_description,
     url='https://github.com/junhwi/python-slack-logger',
@@ -29,5 +29,5 @@
         'Programming Language :: Python :: 3.5',
     ],
     keywords='slack logging',
-    packages=find_packages(),
+    py_modules=['slack_logger'],
 )