Update setup.py

Author: adelavega

setup.py

@@ -5,7 +5,7 @@
     long_description = fh.read()
 
 setup(name='pyns',
-      version='0.5.0',
+      version='0.5.1',
       description='Neuroscout API wrapper',
       long_description=long_description,
       long_description_content_type="text/markdown",