Parenscript — patches for CMUCL-20c

For CMUCL-20c, get Parenscript via QuickLisp (ql:quickload :parenscript)
and if it bombs on named-readtables, apply this 
parenscript-cmucl-20c.patch
combined patch to fix the files in the named-readtables package.

This is other people's code collected here in one patch for convenience, i.e., various patches Google turned up, e.g., at http://lists.common-lisp.net/pipermail/editor-hints-devel/2011-January/000051.html which I haven't looked at but on my MacOS X 10.6.8 MBA, I get 

CL-USER> (ql:quickload "parenscript")
To load "parenscript":
 Load 1 ASDF system:
   parenscript
; Loading "parenscript"
.......................................
[package parenscript].............................
[package ps-js-symbols]...........................
[package ps-dom1-symbols].........................
[package ps-dom2-symbols].........................
[package ps-window-wd-symbols]....................
[package ps-dom-nonstandard-symbols]..............
[package ps-dhtml-symbols]........................
[package ps-js]...................................
..................................................
.......
("parenscript")
CL-USER> (ps:ps (alert "Hello World"))
"alert('Hello World');"
Last modified: 2012 Jan 12 Thu 12:12 EST