Add _tensor_variable.cumprod/cumsum() interface in the theano/tensor/var.py files, in
the _tensor_py_operators class
Update var.py
change imports locations
Update var.py
add nnet
Update var.py
Update var.py
Update var.py
fix some imports
Change sort and argsort imports
add cumsum and cumprod test in theano.tensor.test.test_basic.py
Merge pull request #1769 from RoyXue/master

Add a_tensor_variable.cumprod/cumsum() interface