bumped version to 1.9.0

pybis/src/python/pybis/__init__.py

 name = 'pybis'
 __author__ = 'Swen Vermeul'
 __email__ = 'swen@ethz.ch'
-__version__ = '1.9.0.dev1'
+__version__ = '1.9.0'
 
 from . import pybis
 from .pybis import Openbis

pybis/src/python/setup.py

@@ -11,7 +11,7 @@ with open("README.md", "r", encoding="utf-8") as fh:
 
 setup(
     name='PyBIS',
-    version= '1.9.0.dev1',
+    version= '1.9.0',
     author='Swen Vermeul • ID SIS • ETH Zürich',
     author_email='swen@ethz.ch',
     description='openBIS connection and interaction, optimized for using with Jupyter',