Catch exceptions in future signals.
Catch exceptions in future signals.

Change-Id: Ie17146c55d79b5ffb99eea9074a1945d1bfb138f
Reviewed-on: http://gerrit.aldebaran.lan:8080/16578
Reviewed-by: cgestes <ddb78fe00abb42f91254c16a0860e38eb0781789@aldebaran-robotics.com>
Reviewed-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>
Tested-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>

aldebaran/libqi,aldebaran/libqi,aldebaran/libqi,bsautron/libqi,vbarbaresi/libqi