Cleanup javac warn
Alternate tmp lifetime code for python
Merge branch 'master' of github.com:h2oai/h2o-dev
Merge branch 'master' of github.com:h2oai/h2o-dev

Conflicts:
	h2o-py/src/main/py/h2o.py
	h2o-py/src/main/py/user.py