enh: set textareas for error display to be readonly.
enh: required login session for displaying job error details.
enh: added ability to set chalenge number of scored labels and selected metrics.
Merge branch 'isbiprostate_improvements'

* isbiprostate_improvements:
  enh: added ability to set chalenge number of scored labels and selected metrics.
  enh: required login session for displaying job error details.
  enh: set textareas for error display to be readonly.