Clean up Model comments
First cut of converting Models to Java

Missing some interesting parts, but the basic structure is there.
Merge branch 'master' of github.com:0xdata/h2o
Adding benchmarking scripts.
removed junk csv
Merge branch 'master' of github.com:0xdata/h2o
Removed superfluous arguments in GridSearch page
cleanup of scripts
Merge branch 'master' of https://github.com/0xdata/h2o
Pretty-print GBM model as Java.

Not ready for prime-time yet, missing a bunch of enum mappings, and any
validation
Merge branch 'master' of github.com:0xdata/h2o