release: update NEWS

NEWS

+=======================================================
+network-manager-applet-0.9.6
+Overview of changes since network-manager-applet-0.9.4
+=======================================================
+
+This is a new stable release of network-manager-applet.  Notable changes include:
+
+* Fixed UI mnemonics
+* Various crash and stability fixes
+* Allow appending DNS servers and domains in automatic addressing mode
+* Fix defaults for PPP echo values
+* Show IPv6 addressing page for VPN plugins that support it
+* Port to GSettings and split out 0.8 -> 0.9 migration code into standalone tool
+
+
 =======================================================
 network-manager-applet-0.9.4
 Overview of changes since network-manager-applet-0.9.2