Clean dataSources and medDataSourceManager.
Mutalise open-things-request signals.
Remove last job manager calls, called from medAbstractJob
Add first draft of attached widget for job list management
Remove useless code
Add error message display
Further add-ons, job lines are not removed straight away
Add new icon, switch to medListWidget
Switch to medListWidget, add clear button
Remove messages in status bar
Add job count
Correct bad job numbering