ignore notes files
added .gitignore
add replay.awk, which reads a spool back to munin

replay.awk will check an index file for a given nodename, make a process
call to tar to read the files into memory, process + sort the input,
then in response to a 'spoolfetch EPOCH' command will replay plugin data
that occurs on or after the supplied EPOCH to the request, and on 'quit'
will update the index file