Log Message:
Sync with updated xpdf-2.02 package.

- install into PREFIX, not X11PREFIX
- DEPENDS on xpdf>=2.02 due to USE_X11BASE->USE_X11 change
- fix DEINSTALL files to really remove chunks added to xpdfrc,
  correctly define PKG_SYSCONFDIR, don't use direct commands
  (sed->@SED@, mv->@MV@, rm->@RM@)
- define USE_PKGINSTALL to correctly replace variables in DEINSTALL files
- consistently use DIST_SUBDIR
- don't define completely bogus version numbers, use dates from the
  MASTER_SITE and xpdfrc chunks
- remove PREFIX/share/xpdf from PLISTs, this directory is now part of the xpdf
  package
- remove superfluous license/copyright note from DESCR files
- bump PKGREVISION where necessary