files_in_wsp is openBIS attribute. Uploading files automatically creates a subfolder in session workspace (if none given). new_analysis creates a container and one or two datasets (one for notebook, one for results)

SSDM-3867: class OpenbisCredentials and class OpenbisCredentialStore removed, because they make not much sense. delete_token and save_token re-implemented to make them compatible with jupyterhub login procedure.

SSDM-3867: jupyter authentication finally fixed, token is written to users directory with the correct permissions. Also works with newly created users. pre_spawn_start is not always called!

added many more functions, creating samples, uploading datasets and more. Dicts can be used as attributes

altered localtime to Zurich, added vim to be installed, added scientific python packages (scipy, pandas, matplotlib et al.)