<@U3T2QQKSP> HTTP endpoints: Hexagon <http://there...

# server

[jaguililla]

@juliocbcotta
HTTP endpoints: Hexagon http://there4.co/hexagon (https://github.com/jaguililla/hexagon)
Persistence: Hexagon (MongoDB)
HTTP requests to external services: AsyncHttpClient
E2E tests: Cucumber + AsyncHttpClient