updated build-all.cmd for python wheel
cd .\libraries\botbuilder-schema\
-python .\setup.py install
+python .\setup.py bdist_wheel
+pip install .\dist\microsoft_botbuilder_schema-4-py2.p3-none-any.whl
cd ..\botframework-connector\
-python .\setup.py install
\ No newline at end of file
+python .\setup.py bdist_wheel
+pip install .\dist\microsoft_botframework_connector-3-py2.py3-none-any.whl
+cd ..\botbuilder\
+python .\setup.py bdist_wheel
+pip install .\dist\microsoft_botbuilder-4.0.0a0-py3-none-any.whl
