Signals: make them noncopyable again (my fail)
Signals: make them noncopyable again (my fail)

Change-Id: Ia075daccb5f9164e486246e6a2290c6f87dc13e0
Reviewed-on: http://gerrit.aldebaran.lan/39093
Reviewed-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>
Tested-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>

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