Add functionExternalModules to settings and default to false

packages/node_modules/node-red/settings.js

@@ -41,7 +41,7 @@ module.exports = {
     // Timeout in milliseconds for HTTP request connections
     //  defaults to 120 seconds
     //httpRequestTimeout: 120000,
-    
+
     // Maximum buffer size for the exec node
     //  defaults to 10Mb
     //execMaxBufferSize: 10000000,
@@ -243,6 +243,10 @@ module.exports = {
         // jfive:require("johnny-five"),
         // j5board:require("johnny-five").Board({repl:false})
     },
+
+    // Allow the Function node to load additional npm modules
+    functionExternalModules: false,
+
     // `global.keys()` returns a list of all properties set in global context.
     // This allows them to be displayed in the Context Sidebar within the editor.
     // In some circumstances it is not desirable to expose them to the editor. The