- Fix broken patches.
- Remove obsolete xemacs support.
- Bump version number to 1.4.0 to avoid possible misunderstandings.
Major Linux distributions have adopted an unofficial version
labeled as 1.4.0 which includes fixes for Emacs 24.x while the
official distfile is still 1.3.2. There is no substantial
difference between 1.3.2 and 1.4.0 except for Emacs 24.x compatibility,
and this FreeBSD port has already had almost the same changes.
Although similar unofficial versions can be found at [1] or [2],
they look inconsistent and/or not actively maintained. The official
distfile is used for this reason.
[1] http://www.fsavigny.de/gpled-software/psgml-1.4.0.tar.gz
[2] https://marmalade-repo.org/packages/psgml
