Started bandit easy_interface
Added bandit_example to moe_examples
Added and fixed errors in moe_examples/bandit_example.py
Added bandit_example_test to moe_example.
Merge branch 'master' of https://github.com/Yelp/MOE into norases_386_add_bandits_to_moe_examples
Added comments to bandit_example.
Added comment on BernoulliArm and define explicit historical info for bandit moe example.
Added more links to bandit docs in headers of bandit_simple_endpoint and bandit_example.
Merge pull request #393 from Yelp/norases_386_add_bandits_to_moe_examples

Add Bandits to moe examples