nnfdir parameter for pyNeuroChem.molecule doesn't work without training slash

[zubatyuk]

without training slash:

ERROR: ANNP throw detected! Attempting to shut down nicely!

FPN Error -- "Network not found for ANNP_LOAD_HDNN_AND_TEST!"
 in location -- /home/jujuman/Gits/NeuroChem/src-atomicnnplib/cunetwork/neuralnetbase.cu:98
 in function -- cuNeuralNetworkbase()

[isayev]

This is most likely issue with some PATH and libs, I had similar problems... Is it on storm? CC @Jussmith01