install jupyterhub 1.0.0 in binderhub image
pycurl==7.43.0.1
tornado==5.0.*
kubernetes==7.0.*
-jupyterhub==0.9.4
+jupyterhub==1.0.0
jsonschema==2.6.0
# Logging sinks to send eventlogging events to
google-cloud-logging==1.8.*
