To pd dev -

I'm struggling to finish the design of a slew-limiting low-pass filter
(slop~) to add to Pd vanilla

Make Pd able to open files in the native OS (maybe via a new "pdcontrol"
object that would issue system commands and be extensible to get various
notifications in the future).

For the moment I'm planning to just put an attempt at documentation for slop~
on my own page and point to it from the slop~ help file (which will require
fixing Pd to be able to open URLs).