Allow depth==1
minor fix on summary resampling
Fix numerical stability on perfect prediction.

Turns out a perfect-prediction for 1 class gets a Gamma of 0/0, and a
perfect MIS-prediction gets inf/0.  Distinguish the cases.  Now seeing
iris with large learn-rate stable out to 100,000 trees.
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
Fix of HEX-1402. Showing MSE in grid search if DRF/GBM regression is requested.

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Merge branch 'master' of github.com:0xdata/h2o
edits to clean up recent docs changes
Merge branch 'master' of https://github.com/0xdata/h2o
Add ability to set random seed to RF
Fix for HEX-1509. Add ability to set random seed to RF
Merge branch 'master' of https://github.com/0xdata/h2o
GLM2 now also reports normalized coefficients
rdoc tests
Merge branch 'master' of https://github.com/0xdata/h2o
HEX-1502 - fixed family property in GLM1 json output.
R: increase timeout to launch java 30s -> 60s; saw timeouts on customer system
Merge branch 'master' of github.com:0xdata/h2o
doc tests
Fix of HEX-1508 using temporary page to get factor levels