future waitForFirst: Implement correctly.
future waitForFirst: Implement correctly.

Change-Id: I441141f9b55e67fe0ab85ef9678cabd1b86281bd
Reviewed-on: http://gerrit.aldebaran.lan/20559
Reviewed-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>
Tested-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>

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