Fix TestUtil to have try/catch for missing data in display of leaked objects.
Count skipped rows due to missing values towards total number of processed samples.
Fix Logger to allow logging a "\n" without IOOBE.
Delete the best models during deletion of each cross-validation model.
Add JUnit test for missing values in Deep Learning, run both skipping and
mean imputation and compare accuracies for multiple fractions of missing values.
Merge branch 'master' of https://github.com/0xdata/h2o
Add back Linpack and Memory bandwidth, use hb._cpus_allowed for #of threads.
Cosmetics.