Turn on tests (with new big circle containers)

[ash211]

No fancy test parallelization like other PRs had

[ash211]

That was a spurious success -- don't get too excited now

[ash211]

Looks like we need numpy installed in Circle's python env:

31219 ========================================================================
31220 Running PySpark tests
31221 ========================================================================
31222 Running PySpark tests. Output is in /home/ubuntu/spark/python/unit-tests.log
31223 Will test against the following Python executables: ['python', 'python3.4', 'pypy']
31224 Will test the following Python modules: ['pyspark-core', 'pyspark-ml', 'pyspark-mllib', 'pyspark-sql', 'pyspark-streaming']
31225 /opt/circleci/.pyenv/versions/2.7.11/bin/python: No module named numpy
31226 ^[[31m
31227 Had test failures in pyspark.mllib.tests with python; see logs.^[[0m
31228 [error] running /home/ubuntu/spark/python/run-tests --parallelism=4 ; received return code 255

[robert3005]

💯