Code review comment for lp:~autopilot/autopilot-gtk/experimental

This mostly looks okay visually, except that this needs to grow a

  Breaks: autopilot (<< 1.4)

to avoid trying to install an 1.4 version of libautopilot-gtk with an 1.3 version of autopilot.

Also, actually approving this branch needs to wait for the PS jenkins tests to succeed, which requires landing xpathselect first.