Add directory color support for GNU ls

[jbernard]

GNU ls is part of the coreutils package. It's output, if color is enabled, can be tuned to the badwolf colorscheme with the following command:

$ eval $(dircolors -b contrib/badwolf.dircolors)

To make this the default, copy it to ~/.dircolors. Many systems are already configured to look for this file, but you may need to add something like:

$ eval $(dircolors -b ~/.dircolors)

to ~/.bashrc. To enable color support in ls, you could do the following:

$ alias ls='ls --color=auto'

[sjl]

Merged, thanks.