[augeas-devel] Remove files when corresponding tree is removed

[David Lutterkort]

This series of patches adds a missing feature that I've been meaning to
address for a long time: when deleting the entire subtree of a file, we
should delete the corresponding file upon save.

As an example, when you do
  augtool> rm /files/etc/hosts
  augtool> save

the file /etc/hosts will now be deleted (or renamed to /etc/hosts.augsave,
depending on the save mode) and you'll get a node /augeas/events/saved with
value /files/etc/hosts.

For extra fun, try 'rm /files/etc' ;)

David