[Kde-bindings] Constructor error with QtRuby redux

[Caleb Tennis]

Okay, I just ran some debugging with Ruby 1.8.3 and Ruby 1.8.4_pre1 and
the difference is this:

in Qt.cpp new_qt:

   if (rb_respond_to(result, rb_intern("initialize")) != 0) {
        rb_obj_call_init(result, argc, argv);
    }

This never gets called in Ruby 1.8.4_pre1&2.  The "result" object looks
identical between Ruby versions, though.  Thus, it seems as though the
catch and throw is happening properly, but the object doesn't know it
responds to initialize.