fixed GLMGrid hanging problem.
Merge branch 'master' of github.com:0xdata/h2o
GLM1 parallelism control over cluster.
test_rf_covtype_fvec.py is now multijvm. NPE on summary2
Merge branch 'master' of github.com:0xdata/h2o
CX2 returns signed shorts
Turn off extra log messages
Add domains call to VA
Model predict handles NA's

NA for the prediction if the probability is a NA
OldModel predicts with new model code

GLM1 outputs via the new Model code
Merge branch 'master' of github.com:0xdata/h2o
RF1 tests transferred to RF2 style.

RF1 tests are still preserved.
there were some oddities in the v1 polling (redirect requests) that I had broke in the v2 changes
Merge branch 'master' of github.com:0xdata/h2o
remove a print
Merge branch 'master' of github.com:0xdata/h2o
make this test do DRF2 polling till the end result
Fix of broken code syntax.
Merge branch 'master' of github.com:0xdata/h2o
Set default parallelism to 1 for GLM grid search.

Lots of tests were failing, and forcing the user to enter a value
was not needed.