* login screen
  - should not appear if user has $DM_LOGIN_FILE set, and login is valid

* list of experiments screen
  - view/modify details of an experiment
  - button for adding new experiment

* view/modify experiment screen
  - display list of users associated with experiment
  - display ongoing DAQs/uploads
  - start new DAQ/upload
  - add users, either manually or associated with a given proposal
  - remove users 

* add new experiment dialog
  - add users, either manually or associated with a given proposal
  - start DAQ/upload immediately

* list of DAQs screen
  - view DAQ details
  - start new DAQ
  - stop DAQ

* list of uploads screen
  - view details
  - start new 
  - cancel running upload