Filtering breadcrumb title

There’s what looks like a really useful filter in breadcrumb navxt: bcn_breadcrumb_title. Unfortunately it’s only used in the set_title method, and not in the default constructor. Most breadcrumbs have their titles set through the default constructor.

Fixing this is a really simple code change: in the default constructor, do $this->title = apply_filters('bcn_breadcrumb_title', __($title, 'breadcrumb_navxt'));