summary can subselect columns; fix array oob
Handle constant cols in DRF2
Merge branch 'master' of github.com:0xdata/h2o
Fixed bug in sum light parse. When adding more columns, the min/max were filled with zeros, which is correct except for the last column (the one currently being added) off we're at the first line (in which case, zero might never occur in this column).
Add tiny mnist dataset for debugging

Use MemoryManager for some arrays
Fast cutout for histogram scoring
Merge branch 'master' of github.com:0xdata/h2o
Added method to check client and launch H2O GUI
Merge branch 'master' of https://github.com/0xdata/h2o
Fix of HEX 791. Buffer index was set outside of appropriate if block, leading to setting to zero even if the buffer has no been fully read causing infinite data stream.
Merge branch 'master' of github.com:0xdata/h2o
updated comparisons for libsvm ..added csvDownload and reparse, but there are problems with csvDownload with the libsvm files..so disabled that
Merge branch 'master' of github.com:0xdata/h2o
Fix fvec distribution

Fix breakage in Key hashing not actually causing FVec Keys to
distribute.
Add test for distribution to the DTree tests, when run on multi-JVMs
Fix bugs in DTrees init'ing transient fields.
Merge branch 'master' of https://github.com/0xdata/h2o
fix summary chunk result merge bug (symptom: incorrect merging of min, max arrays across chunks)
add a JsonDiff class. Fix the test_rf_big1_nopoll.py that does many parallel H2O RF (wasn't checking the results correctly)..JsonDiff the results and print. Vary seed= otherwise results don't change (other than the model name I provide)
rf fvec needs real for sample_rate ..was sendd 0 which caused the stack trace.
Merge branch 'master' of github.com:0xdata/h2o
change a param name (rfView=) and hack around rfView/fvec issues for now
Fixed bug in Exec.html
jenkins machine login