Refactor aquamacs launcher
Refactor aquamacs launcher

* Factor out app name

* Because Aquamacs\ Emacs.app was renamed to Aquamacs.app, but I
  switch versions occasionally

dbrady/bin,seutsey/bin,zeusintuivo/bin,meadoch1/bin,seutsey/bin,zeusintuivo/bin,zeusintuivo/bin,dbrady/bin,meadoch1/bin,zeusintuivo/bin,dbrady/bin,meadoch1/bin,zeusintuivo/bin,meadoch1/bin,seutsey/bin,seutsey/bin,meadoch1/bin,seutsey/bin,dbrady/bin,dbrady/bin