Allow to use daybed as a reusable pyramid application

[tonthon]

It should be fun if I could simply add :

pyramid.includes = pyramid_tm
                             daybed
                             ...

in my app.ini file.
or integrate daybed through a

config.include(daybed)

call.

[Natim]

@tonthon do you want to work on a patch for this?

[tonthon]

I'd like to, but I can't find anytime for it now. Maybe I could give it a try during pyconfr's sprint