remove a few dangling IPythons
s/JupyterHubApp/JupyterHub/

users shouldn't need to know wtf Applications are
Merge pull request #104 from minrk/jupyterhub

s/JupyterHubApp/JupyterHub/
deprecate JupyterHubApp config

instead of breaking it outright
Merge pull request #105 from minrk/deprecate-hub-app

deprecate JupyterHubApp config
remove `-e` from IPython line in requirements.txt

cannot specify extra dependencies to `pip install -e`
fix check for url lines when building requirements from requirements.txt
Merge pull request #108 from minrk/no-e

remove `-e` from IPython line in requirements.txt
remove sudo

add SudoSpawner in separate repo,
which works much better than this ever did.