HEX-1796: Add helpers for POJO generation for DeepLearning.
HEX-1796: Add POJO scoring for DeepLearning. Not yet for auto-encoder and for Maxout.
HEX-1796: Add tests for POJO scoring for DeepLearning: Tests multi-class classification with and without balance_classes and regression on Iris.
Merge branch 'master' of https://github.com/0xdata/h2o