Test

Fix page.html menu bar #291

Job	Run time
pytest (3.6, jupyterhub==1.3.* sqlalchemy==1.*)	47s
pytest (3.6, jupyterhub==1.3.* sqlalchemy==1.*)	47s
pytest (3.7, jupyterhub==1.4.* sqlalchemy==1.*)	1m 9s
pytest (3.7, jupyterhub==1.4.* sqlalchemy==1.*)	1m 9s
pytest (3.8, jupyterhub==1.* sqlalchemy==1.*)	36s
pytest (3.8, jupyterhub==1.* sqlalchemy==1.*)	38s
pytest (3.9, jupyterhub==2.* sqlalchemy==1.*)	1m 1s
pytest (3.9, jupyterhub==2.* sqlalchemy==1.*)	1m 1s
pytest (3.10, jupyterhub==3.*)	1m 8s
pytest (3.10, jupyterhub==3.*)	1m 8s
pytest (3.11, jupyterhub==4.*)	1m 7s
pytest (3.11, jupyterhub==4.*)	1m 7s
pytest (3.x, --pre jupyterhub, true)	1m 22s
pytest (3.x, --pre jupyterhub, true)	1m 22s
	14m 22s

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