added packages explicitly

setup.py

@@ -18,7 +18,7 @@ setup(
     long_description=long_description,
     long_description_content_type="text/markdown",
     url='https://sissource.ethz.ch/sispub/jupyter-openbis-server',
-    packages=find_packages(),
+    packages=['jupyter-openbis-server', 'openbis_connection'],
     license='Apache Software License Version 2.0',
     install_requires=[
         'click',