Cosmetics: Outsource formatPct to Utils.
Force locale to be US for NumberFormat.

During CRAN submission, one of the testers was using a German Windows setup.
Apparently, though, R is still sending messages with US-style number formatting.
(cherry picked from commit 9646c52)
Several updates and fixes to SpeeDRF
Merge branch 'master' of https://github.com/0xdata/h2o
tweak the test data so that final column gets mapped
clean up for scoring (only do 1st and last)
fixes around regression in SpeeDRF
fix bugs from transition of VA to FV RF1
-> prevent localVotes from causing recompute of _cms
more bug fixes for SpeeDRF
Updates to JSON in python and R
Update cbind to always make copy of the 2nd argument, making sure (by rebalancing) it is compatible with the first arg.
Merge branch 'master' of github.com:0xdata/h2o
Missed from my last commit.
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of https://github.com/0xdata/h2o
Improve error message.
Fix PUB-768: N-fold with imbalance for DRF/GBM.
Merge branch 'master' of https://github.com/0xdata/h2o into anqi-gbm
Fix a few bugs in index out of bounds checks