Remove yml.example.
Notify user if message content is not a string.
Put a default id (needed).
Rename gate to deviceGate.
Remove unused variable.
Fix typo.
Add missing PUNK drop.
Remove security when encore payload payload.
Now process correclty inject of message/track with a forked thread.
Force integer of add key.
Add flush data of a track.
Alter comment.
Prevent TestsHelper#push_to_test_gate from raising exceptions.
Improve TestsHelper#push_to_test_gate error reporting.

This method will no longer raise any exception (will print
warning in the logs instead).
Sync fixes from ragent.
Alter debug level.
Remove todo.
Alter doc.
Release version v0.2.4-rc106.
Check that message.content is a String in the right place.