[network-manager-openvpn] release: update NEWS

[Lubomir Rintel <lkundrak src gnome org>]

commit 90add4d1d209d8335f0ffc4594560538f6a08535
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Tue Apr 5 22:55:20 2016 +0200

    release: update NEWS

 NEWS |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 9707d9b..ea11c76 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,7 @@ This is a new stable release of network-manager-openvpn.  Notable changes includ
 * Support multiple concurrent OpenVPN connections
 * Various import/export fixes
 * Add support for --ping option to backend
+* Add support for --ns-cert-type option
 * Translation updates
 * Add support for importing inline keys, secrets and PKCS12 certificates
 * Treate the file names as opaque strings as opposed to UTF-8