[Rock-dev] Fix for orogen to get master-slave triger mechanism running

[Matthias Goldhoorn]

Hello Together,
i just fixed the master<->slave activity that orogen creates.

This has some side effects:

1. Inside of an task you cannot set "slave" as activity anymore.
2. You need to define slave-activities inside an deployment by doing this:

main    =   task("main","Task")
adder1  =   task("adder1", "merge_component::AddMerge")
set_master_slave_activity(main,adder1)

The old implementation was simply faulty, since no master was ever 
registered
Will push the Changes to master tomorrow, i don't assume this does brick 
code since the old implementation was faulty and probably never used.

Matthias Goldhoorn

-- 
  Dipl.-Inf. Matthias Goldhoorn
  Space and Underwater Robotic

  Universität Bremen
  FB 3 - Mathematik und Informatik
  AG Robotik
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