DefaultTypeTuple: Fix memory leak.
DefaultTypeTuple: Fix memory leak.

Change-Id: I47760da1ea5cbd91fb981f0ac0513294a99212c9
Reviewed-on: http://gerrit.aldebaran.lan:8080/12480
Reviewed-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>
Tested-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>

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