More lenient gpu test epsilons due to failures on GeForce 7600.
More lenient gpu test epsilons due to failures on GeForce 7600.

svn path=/trunk/libavg/; revision=2902

yyd01245/libavg,scotty007/libavg,hoodie/libavg,th3infinity/libavg,hoodie/libavg,hoodie/libavg,libavg/libavg,scotty007/libavg,th3infinity/libavg,scotty007/libavg,yyd01245/libavg,th3infinity/libavg,hoodie/libavg,libavg/libavg,libavg/libavg,yyd01245/libavg,yyd01245/libavg,scotty007/libavg,th3infinity/libavg,libavg/libavg