Update setup.py

Author: michaelchu

setup.py

@@ -5,7 +5,7 @@
     description="Python Backtesting library for options trading strategies",
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
-    version="1.0.3",
+    version="1.0.4",
     url="https://github.com/michaelchu/optopsy",
     author="Michael Chu",
     author_email="[email protected]",