• Fixed bug #23594, "Embedded escaping does not work as expected",
  reported by M. Zizka; clarified documentation and added 'even-entities'
  argument to 'escape' parameter.
  
• As part of above fix, supplying an unexpected true argument to 'escape'
  parameter results in warning.
  
• Fixed bug #18609, "cdata also pretty-printed", reported by Daniel Schroeer.
  
• Fixed bug #18656, reported by Peter (Stig) Edwards; just removed single
  quotes around Tie::IxHash in require line.