ignore 'errors' field message
Merge branch 'master' of github.com:h2oai/h2o-dev
Merge branch 'master' of github.com:h2oai/h2o-dev

Conflicts:
	py2/h2o_sandbox.py
Merge branch 'master' of github.com:h2oai/h2o-dev
change % to $, and use "%{}.format() when necessary
Merge branch 'master' of github.com:h2oai/h2o-dev