title: Erase a row from a Gtkmm::Table
body: <p>How do I erase a row from a <code>Gtkmm::Table</code> in C++?</p>
  
  <p>Documentation is really poor :-(. I have tried using <code>resize()</code> with no effect, and also calling <code>remove</code> at a <code>Gtk::Widget&amp;</code> that I obtained through <code>get_children()</code>, but the I get segfault...</p>