Cocido Galego

This is the first alpha release towards an octane-compatible release.

It has a few breaking changes.
Some of them are intentional and will stay:

• Public API changed: Previously the contextual component of this addon were invoked with {{#dd.trigger}} and {{#dd.content}}. Now they are expected to be invoked with <dd.Trigger> and <dd.Content>. Note that the names are capitalized. This is done because the new convention that components start with a capital letter.
• Passing @class, @defaultClass, aria-* and most of those properties doesn't work anymore. This addon now expects to be used with angle-bracket syntax. In angle bracket syntax there is a distinction between component arguments (those preceded with an @ sign) and html attributes, and the latter are a much better way of passing any arbitrary attribute to any of the components and sub-components of this addon.
• The default eventType of the trigger changed from "mousedown" to "click". That means that dropdown used to open with the mousedown events will now open with click events, which is a saner default. Since most of the time those events are fired together most people won't notice any difference, but in testing if someone was explicitly firing mouseodown events tests would have to be updated.
• The default rootEventType has changed from "mousedown" to "click". That means that before dropdowns would close
  as soon as the user mousedowns outside the dropdown, but not it will listed to click events by default.
  It's unlikely this change will be noticed by anyone.

One particular one is not intentional and I hope will be fixed before the final release:

• Users no longer can change the tag of the trigger and the content components. This limitation will be fixed once RFC #435 has been implemented.