release: update NEWS

NEWS

+======================================================
+network-manager-applet-1.4.4
+Overview of changes since network-manager-applet-1.4.2
+======================================================
+
+This is a new stable release of network-manager-applet.  Notable changes include:
+
+* Added the capability to start inport of a VPN connection from the command line
+    with "nm-connection-editor --import" option
+* Allow editing of Ethernet link properties, such as link speed or duplex 
+    setting
+* Added support for creating and editing IP tunnel connections
+* Added support for editing Proxy setting whe built with NetworkManager 1.6
+    or newer
+* Added support for TTLS/MSCHAPV2 method
+* Improved the cloned MAC address selection
+* Lot of bug fixes
+* Translation updates
+
 ======================================================
 network-manager-applet-1.4.2
 Overview of changes since network-manager-applet-1.4.0