[librsvg] Created tag 2.40.18

[Federico Mena Quintero <federico src gnome org>]

The signed tag '2.40.18' was created.

Tagger: Federico Mena Quintero <federico gnome org>
Date: Wed Jul 19 20:16:51 2017 -0500

    Tag for 2.40.18 release

Changes since the last tag '2.40.17':

Chun-wei Fan (4):
      Visual Studio builds: Support Visual Studio 2017
      MSVC builds: Include Version info in Property Sheets
      Visual Studio builds: Add scripts to generate .pc files
      Visual Studio builds: Generate .pc files upon "install"

Federico Mena Quintero (9):
      bgo#783835 - Don't divide by zero in box_blur_line() for gaussian blurs
      feTile: don't divide by zero if the input surface has empty bounds
      rsvg_parse_transform(): Return failure for degenerate matrices
      feGaussianBlur: Don't try to blur an invalid surface
      rsvg-filter: Return NULL for invalid surfaces in rsvg_filter_get_{result,in}()
      rsvg-filter: Deal with errors in all callers to rsvg_filter_get_result()
      Update NEWS
      Bump version to 2.40.18
      Create a .tar.xz tarball, like it's 2017