updated version number for PyPI

Author: krokicki

setup.py

@@ -10,7 +10,7 @@
 setup(
     name='neuronbridge-python',
     packages=find_packages(),
-    version='1.0.0',
+    version='3.1.1',
     description='Python API for NeuronBridge',
     long_description=long_description,
     long_description_content_type="text/markdown",