Add alias to start/stop dnsmasq. Chromecast support.
Merge branch 'master' of github.com:Couto/.dotfiles

* 'master' of github.com:Couto/.dotfiles:
  Update submodules
  Add aliases to start/stop dnsmasq
  Add function to save brew packages in Brewfile
  Add gpg2 and speedtest-cli
  Check if it's osx before checking if its mavericks.

Conflicts:
	zsh/aliases.zsh
	zsh/functions.zsh