Convert some OrderedSet when we only check if element are in the set or don't care about the iteration order. Only local changes.

Conflicts:
	theano/compile/profiling.py

crash fix and opt warning fix(make opt apply)

outdim -> ndim leftover and the same to is_flat

Wrap Op params for theano.tensor.nnet.corr.BaseCorrMM and sub-classes.

Fix the opt crash regression introduced by gh-5950.

Add Cudnn version to Theano cache key to the handle_type and _RNNSplitParams. Theano was trying to reload wrong cmodule and crash. For order of code, I needed to move much code around, but that moved coded didn't changed

Wrap Op params for theano.tensor.nnet.corr3d.BaseCorr3dMM and subclasses.

Add support for cudnn v6 dilated convolution.

 - direction (enum list)
 - dH, dW, dD: int64
 - dilH, dilW, dilD: int64
 - padH, padW, padD: int64

This influences all sub-classes:
 - theano.tensor.nnet.corr3d.Corr3dMM
 - theano.tensor.nnet.corr3d.Corr3dMM_gradWeights
 - theano.tensor.nnet.corr3d.Corr3dMM_gradInputs