Update defaults_dialog.js

Added some of the defaults suggested in issue #1028.
I omitted setting RTH to turn first, as most prefer climb first.
I omitted disabling permanent airmode as the reason for disabling it has been fixed in 2.6
I omitted enabling motors as servos by default for safety

js/defaults_dialog.js

@@ -229,6 +229,30 @@ helper.defaultsDialog = (function() {
                     key: "small_angle",
                     value: 180
                 },
+                {
+                    key: "nav_fw_control_smoothness",
+                    value: 2
+                },
+                {
+                    key: "failsafe_procedure",
+                    value: "RTH"
+                },
+                {
+                    key: "nav_rth_allow_landing",
+                    value: "NEVER"
+                },
+                {
+                    key: "nav_rth_altitude",
+                    value: 5000
+                },
+                {
+                    key: "failsafe_mission",
+                    value: "OFF"
+                },
+                {
+                    key: "nav_wp_radius",
+                    value: 3000
+                },
                 {
                     key: "platform_type",
                     value: "AIRPLANE"
@@ -419,4 +443,4 @@ helper.defaultsDialog = (function() {
     }
 
     return publicScope;
-})();
+})();