Merge pull request #2355 from nouiz/cudnn_repair_r1

[CRASH] Repair crash with cudnn r-1 following the removing of struct_id

Merge pull request #2355 from nouiz/cudnn_repair_r1
e34f6e59 · abergeron · 6a017e04 · d1d3451f · e34f6e59
--- a/theano/sandbox/cuda/dnn.py
+++ b/theano/sandbox/cuda/dnn.py