Fix warnings
Fix warnings

Change-Id: I2333d0ad6ae3ba1d3efbe993cbd285f768c58b7e
Reviewed-on: http://gerrit.aldebaran.lan:8080/4795
Reviewed-by: llec <42f1a1c02cacc0f5b0188f0127ea77bedfdcf21a@aldebaran-robotics.com>
Tested-by: llec <42f1a1c02cacc0f5b0188f0127ea77bedfdcf21a@aldebaran-robotics.com>

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