signature: fix free/delete
signature: fix free/delete

Change-Id: I5ac30906cbf7a2d3af5ed07a6dae419ecbb64e4f

bsautron/libqi,aldebaran/libqi-java,aldebaran/libqi,aldebaran/libqi-java,aldebaran/libqi,aldebaran/libqi,aldebaran/libqi-java,vbarbaresi/libqi