In the middle of debugging. Nasty!
Set Texture member variables in ExtendCuda.
Fixed bug in setting colorSpinorField::ghost

Note that the Texture class is needed as a proxy even when DIRECT_ACCESS_BLAS is true.
Bug in packFace
gaugeFatPrecondition is now set properly
CropCuda was being passed source length.
Should have been destination length.
Fixed this.