update version number to v1.0.4

Author: agurvich

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="abg_python",
-    version="1.0.3",
+    version="1.0.4",
     author = 'Alex Gurvich',
     author_email = 'agurvich@u.northwestern.edu',
     description="shared python utilities for http://github.com/agurvich 's packages.",