Fix of +1 error in computing preds[0].
Autogenerated timestamp.
JCodeGen generates code which handles 10k trees.

Internal classes were moved into upper level (the same level
as a model class). Hence model class does not need
to preserve references to its inner classes in its constant poool.
:)
Merge branch 'master' of github.com:0xdata/h2o
Reorder output DATA variable to match column names.
Fixes in generated code:
 - different preds[0]-related computing paths for regression/classification
 - different unification of preds[1..NCLASSES] according the type of
   model
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o