Change _clients from a vector to a list
Change _clients from a vector to a list

Change-Id: I6c0aa9497f9b188f928e4107d17a02774cc175dc
Reviewed-on: http://gerrit.aldebaran.lan:8080/3071
Reviewed-by: llec <42f1a1c02cacc0f5b0188f0127ea77bedfdcf21a@aldebaran-robotics.com>
Tested-by: llec <42f1a1c02cacc0f5b0188f0127ea77bedfdcf21a@aldebaran-robotics.com>

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