Remove scripts directory in favor of using the functions/ or root
for sharing scripts. Using a scripts directory does not solve the
main problem of sharing scripts with the same name, so this addition
was deemed of little value. In the future, a more robust way to avoid
name collisions when sharing scripts would be nice to have, but at
the moment having a scripts directory is not solving this problem
but just adding clutter to the configuration.
Closes#105.