[babl] Update NEWS for 0.1.20

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit 81600209d590bae26cba71b395087158fce850fa
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Sat Nov 5 20:12:12 2016 +0300

    Update NEWS for 0.1.20

 NEWS |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index a993e33..4648db8 100644
--- a/NEWS
+++ b/NEWS
@@ -4,6 +4,9 @@ the news section both in the README and the webpage.
 
 
                                                                           -->
+2016-11-05 babl-0.1.20                                              </dt><dd>
+Fix run-time errors, leaks, and race conditions. Add conditional fast paths.
+                                                                    </dd><dt>
 2016-06-13 babl-0.1.18                                              </dt><dd>
 Bugfix: take alpha threshold in consideration when processing floats in SSE2.
                                                                     </dd><dt>