[apply] super / extend / around

[ahdinosaur]

when you want to extend the functionality of an existing module, using the existing module in your own module.

exports.gives = 'say'
exports.needs = { say: 'super' }
exports.create = (api) => (text) => {
  return api.say(text.toUpperCase())
}

because you might want to 'decorate' an existing module that doesn't already have a reduce chain set up.

/cc @mmckegg @mixmix

[ahdinosaur]

@mmckegg says this is "do what first would do, before this function is added".

[dominictarr]

can you describe a specific usecase where you need this (that is not just logging)?

[dominictarr]

I think this issue may be related to: #16