[poppler] Poppler 0.20.4 released

[Albert Astals Cid]

Note to packagers: This carries a soversion increase in poppler core library

Available from
http://poppler.freedesktop.org/poppler-0.20.4.tar.gz

Changes against 0.20.3:
core:
 * Improvements regarding embedded file handling. (KDE Bug #306008)
 * Fix opening some broken files (Bug #14303)
 * Fix memory leaks
 * Fix crashes in various broken files
 * Refine warning to only complain when really needed
 * Remove function declared but not implemented
 * Remove execution permissions from a header file

qt4:
 * Improvements regarding embedded file handling. (KDE Bug #306008)

Testing, patches and bug reports welcome.

Thanks to the code contributors for this release
 - Albert Astals Cid
 - Pino Toscano
 - Thomas Freitag
 - William Bader

Cheers,
  Albert