rename triggers to fires

[catmando]

its shorter, sounds better, and has same length as param so lines up nicely in declarations

[catmando]

this has been closed since initial commit to this branch

[catmando]

example:

class EditItem < HyperComponent
  param :todo
  other :others

  fires :save
  fires :cancel

  PLACE_HOLDER = 'What is left to do today?'

  render      { INPUT(others, placeholder: PLACE_HOLDER, defaultValue: todo.title) }

  on(:enter)  { |evt| todo.update(title: evt.target.value) && save! }
  on(:blur)   { cancel! }

  after_mount { jQ[dom_node].focus }
end