[poppler] Poppler 0.15.2 (0.16 Beta 2) released

[Albert Astals Cid]

Available from
http://poppler.freedesktop.org/poppler-0.15.2.tar.gz

WARNING: This is a unstable release, it is actually 0.16 Beta 2 release, it 
should work like any release from the 0.14 branch, but do not blame us if it 
turns your spoon into a fork.

Changes against 0.15.1:
core:
 * Improve shadings and antialias in the Splash backend (Bug #30436)
 * Linearization improvements
 * Small improvements to the Arthur backend
 * Fix calculation of the size of some pages (Bug #30784)
 * Fix crashes in broken documents

qt4:
 * Add Page::renderToPainter() method
 * Add setDebugErrorFunction() method

cpp:
 * Add the hability to render pages to an image

utils:
 * Add -p flag to pdfimages

build system:
 * Remove -ansi flag for cywin and mingw

Testing, patches and bug reports welcome.

Albert