baselines: default logger similar to configure() logger, rcall: don't call logger.configure() for new rl_algs
baselines: default logger similar to configure() logger, rcall: don't call logger.configure() for new rl_algs

* error if logger looks wrong

* check version of logger, call logger.configure() on import

* remove changes entry

* add version to rl-algs

* fix typo

* add comment

* switch version to string

* set logger env variable


openai/baselines,openai/baselines