[poppler] Poppler 0.12.4 released

[Albert Astals Cid]

Available from
http://poppler.freedesktop.org/poppler-0.12.4.tar.gz

Changes against the 0.12.3 release:
core:
 * Fix Uncover and Fade transition parsing. Bug #26034
 * Fix GfxRadialShading::GfxRadialShading. KDE bug #223359
 * Fix a memory leak in CairoFontEngine
 * Use the right matrix for the mask in drawMaskedImage() in CairoOutputDev. 
Bug #16906
 * Only assume a OC is not visible if it exists and is set to no. Bug #26532
 * Guard agains malloc returning NULL in SplashFTFont

qt4:
 * Update requirement to Qt 4.4
	
glib:
 * Use PDFDoc(wchar_t *, ...) on Windows. Bug #25032

build system:
 * fix typo: "MULTITHREAD" -> "MULTITHREADED" in CMake

Testing, patches and bug reports welcome.

Albert