add empty files

Link README.md to the upcoming README file.
add the beginnings of my rewrite of the siteXYtools basically works, just needs a good install.site to do the work.
Be more careful about spaces better find with -prune to make searching faster
I think it handles spaces everywhere now
add copyright
change name from "populate_from" to "include"
read config from an external file
add support for an install.site file that we copy in from where we find it.
a little more output
easier loop for machines. Also found another place that expansion could have spaces
notice if we already included a role to avoid loops
add some command line option parsing.  Doesn't work, but it is there.
fix getopts so we can still specify machines on the command line and make the opts we have mostly work.
better output when regen mtree
clean up the order in which things are done, more flags to decide specifically what will be done
some cleanup based on sysmerge, add usage
better output when running
reverse the order of including roles so roles overwrite files from roles that were included below them.
copy the CONFIG_FILE into the siteXX tarballs if it exists.
better treatment of mtree files.  If we extract them we should apply the mtree, If we are using an existing dir, then no need.