ContentList content type; getting content items/lists from Options generically via content.Items, and a new addContent widget function. Several improvements to generic handling of content. New button-with-text widget. Some tidy-up. Some name changes, to increase uniformity. Bug-fix: floating widgets of fixed size could previously be made larger than intended from config dimdata.

module mde.util;

/// Not my code: http://www.dsource.org/projects/tango/ticket/1174#comment:7
R delegate(T) toDg(R, T...)(R function(T) fp) {
    if (!fp) return null;
    struct dg {
        R opCall(T t) {
            return (cast(R function(T)) this) (t);
        }
    }
    R delegate(T) t;
    t.ptr = fp;
    t.funcptr = &dg.opCall;
    return t;
}