remove debug
minor cleanup

- remove obsolete search criterion
- add default value to getAgentsFromActors
- add comments
use targets and actors in task's objects

- replace old 'definition' and 'action' names by 'targets' and 'actors'
- start filtering jobstates by timeslots (it still needs some rework)
cleanup debug
disable not working profile initialisation (for now)
add tasks and jobs helper script