bumped version to 1.20.4

pybis/src/python/CHANGELOG.md

+## Changes with pybis-1.20.4
+- fixed parents/children problem when get_samples(), get_datasets()
+- sorted imports
 ## Changes with pybis-1.20.3
 - deactivated debugging logs
 - creation of property type accets vocabulary object

pybis/src/python/pybis/__init__.py

 name = "pybis"
 __author__ = "Swen Vermeul"
 __email__ = "swen@ethz.ch"
-__version__ = "1.20.3"
+__version__ = "1.20.4"
 
 from . import pybis
 from .pybis import DataSet

pybis/src/python/setup.py

@@ -13,7 +13,7 @@ with open("README.md", "r", encoding="utf-8") as fh:
 
 setup(
     name="PyBIS",
-    version="1.20.3",
+    version="1.20.4",
     author="Swen Vermeul • ID SIS • ETH Zürich",
     author_email="swen@ethz.ch",
     description="openBIS connection and interaction, optimized for using with Jupyter",