Remove unnecessary method.  Only print ASCII CM if size < 30.
Change the name of NN from "NeuralNet2" to "NN".
Remove unnecessary creation of DataInfo.
Deprecated old NeuralNet, call the new NeuralNet NN.
Revert back to using 3 nodes for JUnitRunnerDebug.
Cleanup locking/unlocking and ownership of DataInfo. Towards clean API.
Merge branch 'arno-deeplearning2'
Merge branch 'master' of https://github.com/0xdata/h2o