Add (failing) spec for a really sophisticated modal-dialog class, as an example of what I want to be able to do with blocks in Fortitude.
If you pass a class to #widget, let the block get passed to the content method, rather than both the constructor and the content method (which is just a bit silly).
Break out modal_section into its own class, to make sure we can handle things nested two levels down.
Fix respond_to? so it works the same as method_missing; change it back so constructor blocks get passed the widget; complete specs for all this stuff.
Fix spec on 1.8.7.