Improve header and footer

[zenangst]

Today we have a protocol called Componentable which is used to configure both headers and footers. I got an idea how to improve those components by making them ItemConfigurable. That would really increase the flexibility when working with headers and footer as they can carry a lot more configurable data.

So if you looks at the JSON, instead of:

{
  "title" : "My component",
  "header" : "MyHeaderView",
  "footer" : "MyFooterView"
}

We could do something like this;

{
  "header" : {
    "title" : "My Header Title",
    "subtitle" : "...",
    "kind" : "MyHeaderView",
   ...
  },
  "footer" : {
    "title" : "My Footer Title",
    "subtitle" : "...",
    "kind" : "MyFooterView",
   ...
  },
}

Essentially, both header and footer would take an item. This renders title redundant.

What do you guys think? @hyperoslo/ios

[zenangst]

I was bored so I made a branch for this if we decide to go for this suggestion. It can be found on my fork here.

It refactors the ComponentModel to use Item's for both header and footer.
With that change, we can remove Componentable from the project completely and it
would be much easier to work with views as anything can be placed anywhere.