glib-demo: Remove GTK_DISABLE_DEPRECATED compilation flag

Deprecations are now compile warnings, there's no reason to make them
fatal.
use copyString where memory is freed with gfree

Bug #67666
pdfdetach: don't mention xpdfrc

- drop -cfg command line argument; the old code passed its value to
  GlobalParams constructor which is the data dir, not a cfg file
- remove corresponding lines from pdfdetach.1
- fix '-enc' documentation in pdfdetach.1
Merge remote-tracking branch 'origin/poppler-0.24'
Fix `pdftotext -bbox in.pdf -`

Print body text to stdout if invoked as above.

Bug #45163
Merge remote-tracking branch 'origin/poppler-0.24'
Fix indentation
Fix a typo
Merge remote-tracking branch 'origin/poppler-0.24'
pdftoppm: Add thinlinemode option setting
PNGWriterPrivate is actually a struct not a class
Remove usnused objectNumberFirst member
Remove unused xref member
Tagged-PDF: Accessors in Catalog for the MarkInfo dictionary
pdfinfo: Use Catalog::getMarkInfo() to show mark info properties
use copyString where memory is freed with gfree

Bug #67666
Fix exit(1) in 1026.asan.0.42.pdf

The main crash in discussion with Thomas
Fix jpeg image export

Use same logic than the one used in ImageOutputDev
Bug #48270
Merge remote-tracking branch 'origin/poppler-0.24'
Revert "pdfinfo: Use Catalog::getMarkInfo() to show mark info properties"

This reverts commit 73cca518c479594e26605196d54b429fbf42dcdc.

No clue how this ended up in the stable branch