Add Bandits to moe examples

********* PEOPLE *************
Primary reviewer: @sc932 

Reviewers: @suntzu86 

********* DESCRIPTION **************
Branch Name: norases_386_add_bandits_to_moe_examples
Ticket(s)/Issue(s): #386   

********* TESTING DONE *************
make test
make style-test
darn, I was hoping that mapping already existed/is easy. I'm kind of wary about defining so many dicts mapping these related concepts together (like and endpoint and a route name are closely related ideas).

oh well