Make sure stats have fields and values

Some stats were 0 length and erroring out graphite
Write timestamp in front of anything written to stdout (useful if
running this as a service).  Also force each puts to stdout to flush.
Merge branch 'master' of https://github.com/elliottneilclark/munin-graphite
If you want 60 s granularity, make sure to sleep for much less than 60 s.  Graphite does the Right Thing if you send > 1 update per 60 s window.
Added daemon script
add amqp support
Merge branch 'master' of git@github.com:cornet/munin-graphite
Merge branch 'master' of git@github.com:overthink/munin-graphite

Conflicts:
	munin-graphite.rb
tidy up requires for non-amqp
Merge pull request #1 from tmonk42/master

Pulling in lots of fixes