cups-filters 1.18.0

This release consists mainly of fixes and improvements for the Braille embosser support, but also does fixes on other filters, fixes of make dist, and especially removes the pdftoopvp and pdftoijs filters by default due to the fact that there are no know printer drivers actually using them.
Please post an issue if you are actually using printer drivers which use pdftoopvp or pdftoijs.
Thanks to Samuel Thibault for his excellent work on Braille embosser support!

• braille: Add support for page-ranges option (Pull request #12).
• braille: Fix supporting docx and LO file names with spaces (Pull request #11).
• .gitignore: Updated and cleaned up.
• Build system: Make sure that "make dist" always includes all files of the repository, plus the files generated by ./autogen.sh, independent of the system configuration and the used ./configure options.
• pdftoijs, pdftoopvp: Build pdftoijs and pdftoopvp only on demand (via "--enable-ijs" and "--enable-opvp" on the ./configure command line). There are actually no known printer drivers using these filters. If no one complains about the missing filters they will get completely removed.
• Build system: Set default path for pdftops to /usr/bin/pdftops also for cross-compiling (Bug #1417).
• cups-browsed: Set "printer-location" as an attribute and not as an option when creating/updating a CUPS queue (Bug #1413).
• braille: Fix handling non-printable characters in BRF files.
• braille: Fix printing backslashes in BRF files.
• braille: use application/vnd.cups-brf instead of text/vnd.cups-brf.
• braille: Make sure liblouis emits pure BRF output.
• braille: Spaces at the head of lines were not getting embossed, because bash would eat them in the read command. IFS allows to avoid the issue.
• gstoraster: Emit proper error message if Ghostscript is missing. Thanks to Peter De Wachter (pdewacht at gmail dot com) for the patch (Bug #1415).
• braille: Old bash does not like quotes, like in '$(("123" + 0))'. Removed unneeded quotes.
• braille: Index V5 embossers are compatible with the V4 protocol so we do not need driver changes, we just need to advertise the support.

cups-filters 1.17.9

Minor bug fixes in cups-browsed

• cups-browsed: Applying option defaults from the DefaultOptions directive in cups-browsed.conf got lost. Re-introduced it (Bug #1414).
• cups-browsed: Get printer-location field from remote printers. Thanks to Marek Kasik for the patch (Bug #1413).