fix test
Merge pull request #43 from tyx/fix/remove-useless-transport

fix test
SImplify pipe system

Now it will forward directly the data provided by the previous job
Merge pull request #44 from tyx/fix/simplify-pipe

Simplify pipe system
Deal with transformer with retuns array
Merge pull request #45 from tyx/feature/transform-array

Deal with transformer with retuns array
[Metadata] If metadata not a scalar we get its value directly

Let the possibility to store whatever in metadata
[Metadata] Pass metadata collection while extracting

It was a missing point before
Fix the requeue system by simplification

Whatever if next message is a requeue or the next job, we have now only one way to create this message
And we get an exception to stop the process.
remove useless stuff
While we don't know the total (null) we continue to requeue.

In charge to developper to make extractor that gets an end by setting $total just when they know it.
Let the possibility to calculate the total in the first loop.

As we don't need the total until we go out the extractor
For now, only string will be consider as local metadata

Metadata system need big improvements...

We should dissociate LocalMetadata brings in each message, than global metadata.
That should be the next refactoring