[poppler] Poppler 21.08.0 released

[Albert Astals Cid]

Ignore the previous one ^_^

Available from
http://poppler.freedesktop.org/poppler-21.08.0.tar.xz

The tarball is signed at http://poppler.freedesktop.org/poppler-21.08.0.tar.xz.sig with my key
http://pgp.rediris.es:11371/pks/lookup?op=get&search=0xCA262C6C83DE4D2FB28A332A3A6A4DB839EAA6D7

Release 21.08.0
core:
 * Add API to allow addition and modification of outlines into a PDF
 * Use additional samples to test for constant parts of an axial gradient
 * forms: Create fallback fonts for some well known font names
 * Support reading the PDF Version from the Catalog
 * Fix XRef::copy when there are modified objects
 * Take into account that Date string may be in unicode
 * JBIG2Stream: Fix regression in "Do not consider a size-0 to be an error"
 * Replace a local bubble sort implementation by std::sort
 * Fix issues with malformed files

build system:
 * Better error message when libjpeg is not found
 * Better error messages when libopenjpeg2 is not found

qt5/qt6:
 * Document that a document has to outlive its pages
 * Make getPdfVersion return a dedicated version object

glib:
 * mimick TextSelectionDumper logic change for spaceAfter

This release was brought to you by Adrian Johnson, Albert Astals Cid, Hib Eris, Nelson Benítez León, Oliver Sander, RM, Uli Schlachter, Zachary Travis and everyone else that filed bugs or helped with code reviews :)

Testing, patches and bug reports welcome.

Cheers,
  Albert