[latexila] News: add news for release 3.22.1

[Sébastien Wilmet <swilmet src gnome org>]

commit 060081a878b012c0fab6f1f17a95fe89b2fe00b3
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Jan 18 18:20:49 2017 +0100

    News: add news for release 3.22.1
    
    The release was created in a side-branch. From now on, I'll try to keep
    the NEWS file complete on the master branch, to have a good history
    overview.

 NEWS |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 93511a3..8ee3b48 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,10 @@
 LaTeXila NEWS
 
+Release 3.22.1, 2016-12-18
+--------------------------
+* Fix Vala compilation error with newer valac compiler
+* Translation updates
+
 Release 3.22.0, 2016-09-18
 --------------------------
 * Fundraising