Cosmetics.
Add TwoDimTableV1 Schema.
Comment out unused code.
Add factory method for Frame from named Vec.
Cosmetics.
Fix typo.
Clean up ConfusionMatrix API - store domain inside, reduce number of constructors to 1.
Update all models that call CM.
Disable Rapids use of DLProstateTest for now - intermittent  DistributedException.
Add JUnit tests for ConfusionMatrix.
TODO: Move junit/cm dir to S3.
WIP towards exposing the TwoDimTable version of the CM in the REST API.
ignore warnings.
Remove smalldata files for CM JUnit test, now on S3.
Merge branch 'master' of https://github.com/h2oai/h2o-dev

Conflicts:
	h2o-core/src/main/java/water/util/TwoDimTable.java
Revert "Cleanup javac warn"

This reverts commit 904821820ce6d58b4a0d2eb965950a7f962d2a87.