Added setup.pl not takes an argument. Added fish

setup.pl now takes a shell path an an artument
Usage: setup.pl -s path/to/shell
Removed debuging statements
Changed the /etc/shells line to /urs/local/bin
Added go environment variables
Forgot GOPATH
Added $HOME/source/go/bin to path
Added /opt/cjdns/ to path
Updated: Stow, Emacs, Fish

Removed fish
Added emacs
Switched to GNU Stow