title: Make cmd the meta key in emacs running in iTerm
body: <p>I run Mac OSX 10.9 (Mavricks) and use EmacsMac installed via macports package emacs-app-mac (emacs version 24.3.1). The GUI uses cmd as the meta key, which is what I want. But I also run   the same binary (emacs points to Emacs -nw) in my iTerm2 terminal (Build 1.0.0.20131116), where meta-key is alt instead of cmd.</p>
  
  <p>In iTerm preferences i've tried the different settings for "left option key acts as ..." but no joy there. Is there a way I can get emacs in iTerm to recognise cmd as my meta key?</p>