private.xml

<?xml version="1.0"?>
<root>
  <list>
    <item>
      <name>Magical stuff</name>
      <identifier>private.magical</identifier>
      <!-- Need this explicitly, otherwise the forward delete thing doesn't work -->
      <autogen>
        --KeyToKey--
        KeyCode::SEMICOLON, ModifierFlag::NONE,
        KeyCode::DELETE
      </autogen>

      <!-- for deleting whole words -->
      <autogen>
        --KeyToKey--
        KeyCode::SEMICOLON, ModifierFlag::OPTION_L,
        KeyCode::DELETE, ModifierFlag::OPTION_L
      </autogen> 

      <!-- yay no more reaching for the DEL key -->
      <autogen>
        --KeyToKey--
        KeyCode::SEMICOLON, ModifierFlag::SHIFT_L,
        KeyCode::FORWARD_DELETE
      </autogen>

      <!-- i guess we need semicolon for smilies. And Perl. ;) -->
      <autogen>
        --KeyToKey--
        KeyCode::SHIFT_R,
        KeyCode::SEMICOLON
      </autogen>
    </item>
  </list>
</root>