Choose the http server implementation

[jd]

Choose an existing http server lib that:

• can handle authentication

[David Rautureau]

A quick research

• nickel
• iron

We are now evaluating iron which seems to be a good choice for the following reasons:

• well documentated
• lots of contribution
• based on hyper which seems to be a reference

[David Rautureau]

Implemented using iron