Migrate README docs to sphinxdoc

Signed-off-by: martin f. krafft <madduck@madduck.net>
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+================================================
+reclass — Recursive external node classification
+================================================
+.. include:: intro.inc
+
+Contents
+--------
+These documents aim to get you started with |reclass|:
+
+.. toctree::
+   :maxdepth: 2
+
+   install
+   concepts
+   operations
+   usage
+   manpage
+   configfile
+   salt
+   ansible
+   puppet
+   hacking
+
+Community
+---------
+Currently, there exists only an IRC channel, ``#reclass`` on ``irc.oftc.net``,
+where you may stop by to ask questions. When usage grows, I'll set up
+a mailing list. If you're using `Salt`_, you can also ask your
+|reclass|-related questions on the mailing list, ideally specifying
+"reclass" in the subject of your message.
+
+Licence
+-------
+|reclass| is © 2007–2013 by martin f. krafft and released under the terms of
+the `Artistic Licence 2.0`_.
+
+About the name
+--------------
+"reclass" stands for **r**\ ecursive **e**\ xternal node **class**\ ifier,
+which is somewhat of a misnomer. I chose the name very early on, based on the
+recursive nature of the data merging. However, to the user, a better paradigm
+would be "hierarchical", as s/he does not and should not care too much about
+the implementation internals. By the time that I realised this, unfortunately,
+`Hiera`_ (Puppet-specific) had already occupied this prefix. Oh well. Once you
+start using |reclass|, you'll think recursively as well as hierarchically at
+the same time. It's really quite simple.
+
+..
+  Indices and tables
+  ==================
+
+  * :ref:`genindex`
+  * :ref:`modindex`
+  * :ref:`search`
+
+.. include:: extrefs.inc
+.. include:: substs.inc