Support nested child action creation

[dlopuch]

A Flux-ism is to have a single global list/registry of actions. When you have a single list, it's useful to have several levels of nesting. I would love to have something like:

var actions = Reflux.createActions({
  foo: {
    children: [
      'subFoo1', 
      { 
        actionName: 'subFoo2', 
        children: ['subFoo2a', 'subFoo2b']
      }
    ]
  }, 
  baz: 'baz'
});

so that I could call something like actions.foo.subFoo2.subFoo2a(...)

The action creator does recursively iterate, but the key is just the json-ification of the Object -- the subaction exists, but it's at actions.foo['[object Object]'].subFoo2a()

Probably a one-liner at: https://github.com/reflux/refluxjs/blob/v0.2.11/src/createAction.js#L44 -- just change it to var name = _.isObject(definition.children[i]) ? definition.children[i].actionName : definition.children[i]; Haven't tested extensively though

[devinivy]

While this does generalize action creation in an interesting way, I personally think this makes the API more confusing than necessary. I would personally push back against this feature, but I'd like to open the discussion up again. This sounds like a good Reflux plugin or helper.