Merge pull request #278 from rhyolight/run-tests-exit-status

Ensuring the proper exit status is returned from python test script.
Move fast_cla_classifier_test to avoid hacky import that was causing failure.
Fix for encoder test failure
Merge pull request #279 from scottpurdy/classifier_test

Move fast_cla_classifier_test to avoid hacky import that was causing fai...
Merge pull request #281 from subutai/encoder-test-failure

Fix for encoder test failure. Merging without travis confirmation since master is red.
Merge remote-tracking branch 'upstream/master' into run-tests-exit-status