Remove one unused routine. Comment out another deprecated routine. Use env
perl. Include mention of initconfig if top-level config file is missing (but
config_dir is present).
Enhancement to allow for node-type specific config file syncing. This is a
subtle use case where an admin may have soft-linked the const_files directory
between to node types, but wants fine grain control over a particular file sync
on only one of the types. Closes #10.