New test file for review from axm1820
2 Python tests and one R test
Reservoir Sampling v1.
Added LRResult object to encapsulate results (instead of just Json).
Merge remote-tracking branch 'upstream/master'
Fix mystery NPE
Merge branch 'master' of github.com:0xdata/h2o
Fix a missing Nil in Shalala example.
Merge branch 'master' of github.com:jgustave/h2o into jgustave-master

Conflicts:
	h2o-scala/build.sbt
LR code polished.
Merge branch 'master' of github.com:0xdata/h2o
Work-around a slowdown of Frame.delete();
Add score_duty_cycle option.
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'jgustave-master'
Merge branch 'master' of github.com:axm1820/h2o into axm1820-master
added toDouble method to overcome R's integer overflow problem
*should be OK now (passes the seed 45189810
added pic and got weird VI error, but hopefully fixed
edited new doc for odd overlap in prior
Fix a bug with as.h2o breaking when key name is specified.