Made aquamacs the default editor.
Added function for teaching HIS 4935
add Developer command line tools to PATH.
Merge branch 'master' of github.com:cliotropic/dotfiles

* 'master' of github.com:cliotropic/dotfiles:
  Added functions to support iDisplay interactions from command line via terminal
  Added function for working on promotion file
  adding function for HIS 4935