Update xpdf from 0.91 to 0.92

Changes since 0.91

0.91a (2000-oct-11)
-------------------
Implemented separable CMYK PostScript output (the -level1sep switch to
  pdftops).
Implemented Pattern color spaces with tiling patterns (polygon fills
  only).
Implemented Stamp annotations.
Implemented Named link actions.
Fixed a really dumb bug in the TrueColor code in SFont (which affects
  both Type 1 and TrueType font rendering on 16-bit displays).
Rewrote the GfxColorSpace / GfxColor code.
Switched from djgppcfg to dj_make.bat (from Michael Richmond).
Bug in the Type 1 encoding parser -- couldn't handle lines of the form
  'dup NNN/name put' (with no space between the code and the name).
Fixed the mkstemp() test in configure.in -- switched from
  AC_TRY_COMPILE to AC_TRY_LINK and added <unistd.h>.
Added DESTDIR to top-level Makefile.in.
Fixed an incorrect OPI comment in PSOutputDev.
Minor tweak to the CCITTFax code to avoid writing past the end of an
  array on an invalid data stream.
Xpdf crashed if the user selected 'reload' when no document was
  loaded.
Look for character names of the form "xx" (two hex digits with no
  leading alphabetic char) and 'cNNN' (decimal digits with a leading
  alphabetic char that happens to be a hex digit).
FlateStream didn't correctly handle zero-length streams.
Xref reconstruction didn't handle the case where the opening "<<"
  immediately followed "trailer" with no intervening whitespace.
Fix the %%DocumentSuppliedResources comment in EPS output.
Scale annotations to fit their rectangles.
Added Stream::close() to handle cases (e.g., patterns) where a Stream
  object is used multiple times before it is deleted.
Added the topLevel arg to Gfx::go() so it doesn't call out->dump() for
  every pattern element (and form).
Rearranged the GfxResources class.
Clean up white space handling in Lexer.
Make the dpi parameter to PDFDoc::displayPage etc. a double - this
  avoids margin gaps with fit-page and fit-width.
Fix a rounding problem in xpdf.cc that was causing the window to
  sometimes be one pixel too small.
Fixed a minor bug in dealing with Base-14 TrueType font names.
Fixed Lab -> RGB color space conversion.
Added support for opacity values (from PDF 1.4) to GfxState and
  OutputDev.  [Thanks to Leonard Rosenthol.]
Implemented type 2 functions; rearranged the Function class
  hierarchy.

0.91b (2000-oct-29)
-------------------
Print a warning about Type 3 fonts (XOutputDev, PSOutputDev).
Added the scroll lock behavior to 'n' and 'p' keys in xpdf.
Change FileStream buffer size to a #define'd constant.
Renamed Pattern to GfxPattern to avoid clashes with Windows and MacOS
  types.
Added CNS (Big5) Chinese font support (CHINESE_CNS_SUPPORT); renamed
  CHINESE_SUPPORT to CHINESE_GB_SUPPORT.

0.91c (2000-nov-19)
-------------------
Fix an endianness problem in the Type 1 font code which resulted in an
  incorrect display with "-t1lib plain" on big-endian systems.
CCITTFax stream decoder will skip over extra zero bits at end of line,
  even if EncodedByteAlign flag wasn't set.
Added Big5 support to pdftotext (with CHINESE_CNS_SUPPORT enabled).
Fixed a typo in the CNS/Big5 encoding translation table.
Change the form code in PSOutputDev to store images in arrays of
  strings.
The xref reconstruction (for damaged files) now also looks for
  'endstream' tags, and the parser uses this information when setting
  up stream objects.
In pdfinfo, convert Unicode chars in the 00xx range into 8-bit chars;
  print a warning if there are any other Unicode chars.

0.92 (2000-dec-03)
------------------
Fixed %%BeginResource comment (for xpdf procset) in PostScript
  output.
Added "-title" switch and "xpdf.title" resource to set the window
  title.
Check for <freetype.h> in addition to <freetype/freetype.h>.
Upgraded the configure script to smr_macros 0.2.4 - this should fix a
  bug where configure wasn't correctly finding t1lib.

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