First working version of gpu sparse.
update to new compyte api
move declaration to global var.
try to find the memory leak
better speed test.
update code to new compyte interface.
Fix compilation error due to type error.
Fix gpuarray op_lifter when the gpu op was inheriting from the OP it replace.
Use new compyte interface.
remove print in c code.
gpu dot(csr, dense), make copy of input matrix less often.
clean up.
Fix some compilation crash of the new GpuSubtensor
Make the new GpuSubtensor tests run with it!
Init the cusparse stuff in the init of the python module when possible.
Update speed test code.