Change log for PD external 'pdstring'

v0.07
   + changed default output of [any2string] to "unsigned char"
     - fixes sourceforge bug #2501709, reported by Roman Haefeli

v0.06
   + fixed asymmetricity bug (thanks to iohannes for the report)

v0.05
   + improved NUL parsing, add in- and outlets
   + use static binbufs to avoid segfaults (a la mrpeach's [str])

v0.03 Thu, 02 Feb 2006 12:57:43 +0100
   + automake-ified

v0.02 ?
   + ?

v0.01 Sun, 26 Oct 2003 14:06:29 +0100
   + initial version