Update a few URLs.
pppp: Cosmetic.
README.org: Dot title.
README: Using jqindex.
README.org: Prepare for next exporter.
README.org: Prepare for next exporter.
pymacs.wpr: Unused, deleted.
README.org: Through Org :export: rather than :noexport:.
pymacs.el.in (pymacs-terminate-services): Should not kill an already dead buffer.
Reported by Leo Liu.
pymacs.el.in (pymacs-called-interactively-p): New function.
From Emacs 22, interactive-p is deprecated, and now raises a warning.
Reported by Leo Liu.