+ (re-)added sprinkler

svn path=/trunk/externals/moocow/; revision=10571

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diff --git a/sprinkler/README.txt b/sprinkler/README.txt
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+    README for pd external 'sprinkler' (formerly 'forward')
+
+DESCRIPTION
+    'sprinkler' objects do dynamic control-message dissemination.
+
+    Given a list as input, a 'sprinkler' object interprets the initial list
+    element as the name of a 'receive' object, and [send]s the rest of the
+    list to that object.
+
+INSTALLATION
+    Issue the following commands to the shell:
+
+       cd sprinkler-X.YY  (or wherever you extracted the distribution)
+       ./configure
+       make
+       make install
+
+BUILD OPTIONS
+    The 'configure' script supports the following options, among others:
+
+    --enable-debug , --disable-debug
+        Whether to enable verbose debugging messages. Default=no.
+
+    --enable-forward , --disable-forward
+        Whether to create [forward] objects as instances of the [sprinkler]
+        class (MAX-incompatible). Default=no.
+
+    --enable-all-forwardmess , --disable-all-forwardmess
+        Whether to use pd_forwardmess() for all messages. If this option is
+        disabled (the default), messages of length 1 will be handled
+        specially; thus a symbol 'foo' will be passed as 'symbol foo',
+        rather than just 'foo'.
+
+        Default=no.
+
+        Future versions of 'sprinkler' may use pd_forwardmess() for all
+        messages by default -- go on, try it!
+
+ACKNOWLEDGEMENTS
+    PD by Miller Puckette and others.
+
+    Ideas, black magic, and other nuggets of information drawn from code by
+    Guenter Geiger, Larry Troxler, and iohannes m zmoeling.
+
+    Thanks to Krzysztof Czaja for pointing out to me the existence of MAX
+    "forward", and to Miller Puckette for the name "sprinkler".
+
+    Thanks to Erasmus Zipfel for a bugreport and useful ideas.
+
+KNOWN BUGS
+    One of the acknowledgements used to be in this section. Sorry, folks.
+
+    Backwards-compatible version is incompatible with MAX.
+
+    Semantic strangeness with singleton messages is somewhat cryptic.
+
+AUTHOR
+    Bryan Jurish <moocow@ling.uni-potsdam.de>
+