rsvg-filter: Fix memory leak
Remove support for GTK+2 along with the old theme engine
Require at least version 3.2 of GTK+
Remove support for old versions of gdk-pixbuf
css: Add support for parsing rgba() colors

This also requires adding alpha support to the solid color paint server.

https://bugzilla.gnome.org/show_bug.cgi?id=639750
css: Improve rgb()/rgba() color parsing

- Don't crash when there's no '('
- Allow mixed numbers and percentages
- Accept real numbers and not just ints
- Allow '.' as the only separator
- Use less code
add eps support to rsvg-convert

Added support for exporting to Encapsulated PostScript files using rsvg-convert

Bug #707526.
css: Fix parsing of #rrggbb values

Fallout from commit 30991cd1299da9b81f2f3c176a38b10f992b2aaf.

https://bugzilla.gnome.org/show_bug.cgi?id=709931
Version 2.40.0
build: Fix testcases build
Post release version bump
build: Fix pango requirement

This was accidentally lowered to a non-threadsafe version.