Menu dropdown needs to work in header-right widget area

[remkus]

dropdown menus in header widget area are not displayed properly

[GaryJones]

This is actually a little more complex than it first seems.

For primary and secondary nav, we have a function that filters the building of it, to add in the mobile menu elements and sets a custom walker which handles the dropdown classes.

We need to tap into the output of the custom menu widget and do the same, but only if we're in the Header Right. However, that would then mean something like my Genesis Header Nav plugin wouldn't inherit the functionality, as it adds the menu to the same visual place, but outside of all of the Header Right widget area markup. Similarly, other nav menus that are added, we don't if they should be enhanced or not - we need to look at some attribute of wp_nav_menu to decide.

[remkus]

I'd be okay in not support plugins like Genesis Header Nav ... Let's see if you can find something relatively easy because I'm otherwise inclined to punt it to 1.1.0

[remkus]

Let's not wrap a border around menu items when they're in the header widget. Looks clunky...

[GaryJones]

Problem still exists re dropdowns.

Suggest punting to 1.1.0