[librsvg] Update NEWS

[Federico Mena Quintero <federico src gnome org>]

commit 3541e1dcfaf4e31195a75cdea8183c68d0354fd0
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Jun 20 16:53:42 2018 -0500

    Update NEWS

 NEWS | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index f059e55e..10156ace 100644
--- a/NEWS
+++ b/NEWS
@@ -1,8 +1,16 @@
 Version 2.43.1
-- The feImage filter is now in Rust (Ivan Molodetskikh).
-- Fix the feOffset filter's coordinate parsing (Ivan Molodetskikh).
+- Fix: #277 - Don't panic when trying to filter an empty group
+  (Ivan Molodetskikh).
+- Fix the feOffset filter's coordinate parsing.  (Ivan Molodetskikh).
 - Fix linearization of SRGB data in the feComposite filter (Ivan
   Molodetskikh).
+- Fix CSS cascading in filters (Ivan Molodetskikh).
+- Fix, don't render filters if they are in error (Ivan Molodetskikh).
+- Filters now support FillPaint and StrokePaint for input (Ivan Molodetskikh).
+- The feImage, feBlend, feComponentTransfer filters are now in Rust
+  (Ivan Molodetskikh).
+- The feOffset filter now supports fractional offsets (Ivan Molodetskikh).
+- All the style property parsers have been moved to rust-cssparser.
 
 Version 2.43.0
 - This is the start of the 2.43 development series, and you bet we are