Added RT specific SSH commands
Merge branch 'master' of https://github.com/l1m5/dotfiles

* 'master' of https://github.com/l1m5/dotfiles:
  Added support for installing coding fonts. This resolves #8.
  Remove unused path variables, add Mac specific PATH variable (for coreutils for now).
  Don't install ruby stuff by default, but install ack
  Use home email as default git config, use git-me to switch.
  Removed unused Ruby elements and added ssh-agent-setup.sh to version control.