don't use params that are still "None" in random_forest_view. These were placeholders, so we can not propagate params from RF that shouldn't be necessary.. Looked and this is the only place where this happens.. (legacy from propagating params from RF to RFView. probably should just make sure they're not propagated in h2o_cmd.py RFView..
Merge branch 'master' of github.com:0xdata/h2o