Python API changes

Frame -> H2OFrame
Cluster -> H2OConnection
Global default connection
Local/remote files & data distinction
"Safe" REST (unified REST error check)
First rapids call attempt
Some more rapids/python

vec+scalar remotely
Some accessors
More interaction with remote Frame

Fetch basic info (#rows), cutouts for mixing data between local &
remote.  Prep work for printing head of remote frame locally.
fix javac warnings
CentOS 5 Cpus allowed can have commas.
changed the test to conform to the h2o-dev api (i.e. cannot mix h2o.frame and data.frame type arguments). test passes.
corrected
corrected
Merge branch 'master' of https://github.com/h2oai/h2o-dev
Provide version fallback for endpoints.
Fix typo.
Make attributes public.
[Gradle Release Plugin] - pre tag commit:  'RELEASE-0.1.15'.
[Gradle Release Plugin] - new version commit:  'RELEASE-0.1.16-SNAPSHOT'.
don't break when path is a specifiedPath
Add @API annotation.
Add prototype for TwoDimTable that holds Object[][] values, with JUnit.
Merge branch 'master' of https://github.com/h2oai/h2o-dev
Cosmetics.
trying strings