Updating dots submodule
Renaming `script/packages` to `script/install`

This reflects a change in the `dots` command, which now treats this
section as part of the `install task`.
Updating dots submodule
Renaming `script/customizations` to `script/customize`

This reflects a change in the `dots` command, which now treats this
section as part of the `customize` task.
Renaming `script/config` to `script/configure`

This reflects a change in the `dots` command, which now treats this
directory as part of the `configure` task.
Updating the scripts Readme
Updating dots subdmodule
Renaming 'customize_icons' to 'customize'

Now that the directory is named 'customize', the same word in this
filename is redundant.