reduce comments
don't use the export variable any more for h2o package
Merge branch 'master' of https://github.com/0xdata/h2o
Fix NPE for regression.
Always show confusion matrix for training data.
Cleanup imbalanced data handling for NN.
Rewrite some of the stratified sampling code for easier readability.
Add more helpers for arrays: minIndex.
Merge branch 'master' of https://github.com/0xdata/h2o
Skip missing labels in stratified sampling.
track h2o-per instead of PerformanceFrameWo...
updates to tests
update regularizaiton test
rename a test
added regularization test
On the way to compute varimp for DRF/GBM.

Now DRF varimp is computed in the way proposed in
http://www.stat.berkeley.edu/~breiman/RandomForests/cc_home.htm#varimp

The change contains:
 - unify the code with R-version of code (see randomForest package)
 - shuffle only OOB rows
 - get a rid of a dedicated ShuffleTask and shuffle rows on the fly

What is missing:
 - need to compute var imp on the fly after producing a tree.
Updated to latest Jacobi
added glm1 tests
Merge branch 'master' of https://github.com/0xdata/h2o
some tests that were in my dir..maybe prune later. added cars.csv to summary2_unifiles.py
some other stuff laying around. may need to tweak
Merge branch 'master' of github.com:0xdata/h2o

Conflicts:
	py/testdir_single_jvm/test_summary2_unifiles.py
	src/main/java/hex/Summary2.java
in progress
allow for different machine to start tests, but still log to 171