title: M-RET and M-UP/DOWN not working in Emacs org-mode in console/terminal
body: <p>I'm using <code>emacs23</code> on Ubuntu 32-bit 10.04/10.10 with GNOME and Compiz.  </p>
  
  <p>Pressing <kbd>M-RET</kbd> in an <code>org-mode</code> plain list in Emacs (GUI) inserts a new item. Pressing <kbd>M-Up</kbd> moves the item up in the list.  </p>
  
  <p>These keys don't work as expected in <code>emacs -nw</code> under Terminator and <code>gnome-terminal</code>. The <kbd>M-Up</kbd> key does nothing, whereas the <kbd>M-RET</kbd> key simply moves the cursor down one line and indents the position. The keys also don't "work" in <code>xterm</code>, which inserts <code>\215</code> instead. Pressing <kbd>ESC-RET</kbd> or <kbd>ESC-Up</kbd> instead produces the expected functionality. The same problems exist if I run <code>emacs -nw</code> on a headless server accessed via <code>ssh</code> under Terminator, <code>gnome-terminal</code> and <code>xterm</code>.</p>
  
  <p>I've searched both generally and on the <code>org-mode</code> Gmane list for an answer to this, but have not found anything. Is this a known issue with <code>org-mode</code> or is it related to the terminal emulator and/or the Window Manager?</p>