WIP towards fixing memory leak for n_folds.
Merge branch 'master' into arno-deeplearning2

Conflicts:
	src/test/java/hex/DeepLearningProstateTest.java
	src/test/java/water/JUnitRunnerDebug.java
WIP towards fixing memory leak when cross-validation is on.
Merge branch 'master' into arno-deeplearning2

Conflicts:
	src/test/java/hex/DeepLearningProstateTest.java
Disable variable importance.
Disable syn_6 dataset, which we don't parse properly right now.
add min_std_dev param
imitation -> datasets.
Merge branch 'master' of github.com:0xdata/h2o
Make notest.
Fix for PUB-927. Check proc/pid/status for Cpus_allowed mask and return a value indicating whether the number of CPUs is limited for each node.
Merge branch 'master' of https://github.com/0xdata/h2o
Fix for PUB-927. Move check of CPUs limit to end of h2o.clusterInfo in R.
Speed up Naive Bayes predictions, also increase min_std_dev default value.
Merge branch 'master' of https://github.com/0xdata/h2o
Fix test_bayes_rand2 (turn covtype into binomial for AUC).
Move test from NOPASS to pass now.
Cosmetics.
Fix for PUB-927. Return number of allowed CPUs for each node and check whether CPUs are limited in R.
Merge branch 'master' of https://github.com/0xdata/h2o
Add test for pub960; glm aic for gamma and tweedie