cups-filters 1.25.0 released!

[Till Kamppeter <till.kamppeter@gmail.com>]

Hi,

I have released cups-filters 1.25.0 now, with the following changes:

	- pdftoijs, pdftoopvp: Removed these deprecated filters
	  completely as there is no demand for them any more. They
	  also used unstable, undocumented APIs of Poppler.
	- pdftoraster: Changed from using unstable, undocumented APIs
	  of Poppler to stable, documented ones, to improve
	  maintainability of this filter, and with it of the
	  cups-filters package. Thanks to Tanmay Anand for
	  contributing this as his Google Summer of Code 2019 project.
	- libcupsfilters: Added support for color spaces CMY and RGBW
	  when using filters without PPD file (mainly for development
	  and debugging, option "print-color-mode" with values
	  "cmy-XX" and "rgbw-XX" with XX being the number of bits per
	  color).

In this release the pdftoraster filter is changed to only use 
stable/documented APIs of Poppler (Tanmay Anand's Google Summer of Code 
2019 project) and the deprecated, Poppler-based filters pdftoijs and 
pdftoopvp are finally completely removed. Now Poppler is only used for 
the pdftoraster filter. Poppler's unstable/internal APIs are nowhere 
used any more in cups-filters.

Note that the build dependencies of the package probably need to get 
changed. The only build dependencies on Poppler are now 
libpoppler-cpp-dev and poppler-utils, libpoppler-private-dev is not 
needed any more.

Please release this on Debian so that I can sync it into Ubuntu.

Thanks in advance.

   Till