[poppler] Poppler 0.21.1 (0.22 Beta 1) released

[Albert Astals Cid]

Available from
http://poppler.freedesktop.org/poppler-0.21.1.tar.gz

WARNING: This is a unstable release, it is actually 0.22 Beta 1 release, it 
should work like any release from the 0.20 branch, but do not blame us if it 
turns your Android phone into a corded one.

Changes against the 0.21.0 release:
core:
 * Annotation improvements
 * Form improvements
 * CairoImageOutputDev: Support parameterized Gouraud shading (Bug #56463)
 * UTF validation fixes
 * Do not call drawing routines if we don't need non text (Bug #54617)
 * Fix Memory leak in CharCodeToUnicode (Bug #54702)

qt4:
 * Make LinkRendition properties available (Bug #55378)
 * Accessors for FormWidgetChoice::editChoice
 * Implement overprint

Testing, patches and bug reports welcome.

Albert