release: update NEWS

NEWS

+=======================================================
+network-manager-applet-1.8.14
+Overview of changes since network-manager-applet-1.8.12
+=======================================================
+
+* Fix an applet crash on disconnect.
+* Fix VPN icons in AppIndicator mode.
+* Provide (limited) secret agent service even when a keyring is unavailable.
+* Fix saving of connections with "always ask" EAP secrets.
+* Register editor windows as GtkApplication windows, so that the editor
+  quits at the right time with --edit option.
+* The AppStream metadata is now in /usr/share/metainfo as recommended by the
+  specification.
+* Updated Catalan translation.
+
 =======================================================
 network-manager-applet-1.8.12
 Overview of changes since network-manager-applet-1.8.10