* Remove all __future__ imports from RLlib.
* Remove (object) again from tf_run_builder.py::TFRunBuilder.
* Fix 2xLINT warnings.
* Fix broken appo_policy import (must be appo_tf_policy)
* Remove future imports from all other ray files (not just RLlib).
* Remove future imports from all other ray files (not just RLlib).
* Remove future import blocks that contain `unicode_literals` as well.
Revert appo_tf_policy.py to appo_policy.py (belongs to another PR).
* Add two empty lines before Schedule class.
* Put back __future__ imports into determine_tests_to_run.py. Fails otherwise on a py2/print related error.
* streaming message bundle use inplacement instance
* fix typo & enable common test
* fix compiler warning
* block copy for serilization
* add reference
* remove streaming common test to travis script
* Polish Bazel build scripts
* Remove glog references from streaming_logging.cc
* Move out COPTS and reference them
* Disable streaming on Windows
* Remove -fno-gnu-unique
