Add munin-node-from-hell, a quite unfriendly munin node

tools/munin-node-from-hell/README.rst

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+munin-node from hell
+====================
+
+This is a simple implementation of a munin node (http://munin-monitoring.org/)
+that is made to give the polling server a hard time.
+
+In practice this is the munin-node that we use to develop and test the awesome
+stuff we do at http://hostedmunin.com/ . Use it as you feel fit :)
+
+Current features controlled via config file:
+
+* Respond slowly or never to queries.
+* Have plugins that always are in warning or alarm.
+* Extensive number of plugins.
+* Run on multiple ports at the same time, to test huge amounts of clients.
+
+
+Usage
+-----
+
+munin-node-from-hell takes two arguments; the mode and which config file to
+use. Mode is either --run or --muninconf.
+
+This software is meant to run as an ordinary unix user, please don't run
+it as root without some thought.
+
+You probably want:
+
+	./munin-node-from-hell --run simple.conf
+
+To make a config snippet to put in munin.conf:
+
+	./munin-node-from-hell --muninconf simple.conf > snippet.conf
+
+License
+-------
+
+See the file MIT-LICENSE for details.
+
+Contact
+-------
+
+Lasse Karstensen <lasse.karstensen@gmail.com>