Image endpoint

[kylef]

As discussed in AFNetworking/AFNetworking#1075 this is an issue for adding an image endpoint.

I'll convert this to a pull request tomorrow. But just so we can figure out how to do this I have created an issue right now.

Would be great to have an endpoint which would support multiple types like as follows:

> GET /image HTTP/1.0
> Accept: image/png
< Content-type: image/png

> GET /image HTTP/1.0
> Accept: image/jpeg
< Content-type: image/jpeg

> GET /image HTTP/1.0
> Accept: image/*
< Content-type: image/png

There are two options we have:

• Generate images in code so we don't have any static files. I like this idea, but it might not be a good choice for performance. It may also add a dependency for something like PIL.
• Include a bunch of static images in the project

/cc @mattt

[kennethreitz]

Love the API. Exactly what I had in mind w/ the accept headers.

[kennethreitz]

I think just having a few static images in the repo is totally fine. Is there a reason that you'd want them to change often?

[kylef]

Nope, it was purely because I hate putting binary data in repositories. Great, will get going tomorrow (UK time).

[kennethreitz]

As long as it's small, it's fine with me :)